diff --git a/README.md b/README.md
index 5af340b..34a28d0 100644
--- a/README.md
+++ b/README.md
@@ -50,7 +50,23 @@ In our repository we use a pre-configured file [hardhat.config.ts](https://githu
 
 You can define custom hardhat tasks in [hardhat.config.ts](https://github.com/ava-labs/avalanche-smart-contract-quickstart/blob/main/hardhat.config.ts).
 
+## Snowtrace Verification
+
+To try out Snowtrace verification, you first need to deploy a contract to an Avalanche network that's supported by Snowtrace, such as Fuji, C-Chain.
+
+In this project, copy the `env.example` file to a file named `.env`, and then edit it to fill in the details. Enter your Snowtrace API key, and the private key of the account which will send the deployment transaction. With a valid `.env` file in place, first deploy your contract:
+
+```shell
+hardhat run --network fuji scripts/deploy.ts
+```
+
+Then, copy the deployment address and paste it in to replace `DEPLOYED_CONTRACT_ADDRESS` and `CONSTRUCTOR_ARGUMENTS` if needed in this command:
+
+```shell
+npx hardhat verify --network fuji DEPLOYED_CONTRACT_ADDRESS CONSTRUCTOR_ARGUMENTS
+```
+
 ## Documentation
 
 There is a documentation under the Avalanche's official documentation repository:
-[Using Hardhat with the Avalanche C-Chain](https://docs.avax.network/build/tutorials/smart-contracts/using-hardhat-with-the-avalanche-c-chain)
\ No newline at end of file
+[Using Hardhat with the Avalanche C-Chain](https://docs.avax.network/build/tutorials/smart-contracts/using-hardhat-with-the-avalanche-c-chain)
diff --git a/env.example b/env.example
new file mode 100644
index 0000000..3d9778c
--- /dev/null
+++ b/env.example
@@ -0,0 +1,2 @@
+SNOWTRACE_API_KEY=
+PRIVATE_KEY=
diff --git a/hardhat.config.ts b/hardhat.config.ts
index bb93792..75214ed 100644
--- a/hardhat.config.ts
+++ b/hardhat.config.ts
@@ -1,7 +1,11 @@
+import * as dotenv from "dotenv";
 import { task } from "hardhat/config"
 import { SignerWithAddress } from "@nomiclabs/hardhat-ethers/signers"
 import { BigNumber } from "ethers"
 import "@nomiclabs/hardhat-waffle"
+import "@nomiclabs/hardhat-etherscan";
+
+dotenv.config();
 
 // When using the hardhat network, you may choose to fork Fuji or Avalanche Mainnet
 // This will allow you to debug contracts using the hardhat network while keeping the current network state
@@ -81,13 +85,16 @@ export default {
       url: 'https://api.avax-test.network/ext/bc/C/rpc',
       gasPrice: 225000000000,
       chainId: 43113,
-      accounts: []
+      accounts: process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
     },
     mainnet: {
       url: 'https://api.avax.network/ext/bc/C/rpc',
       gasPrice: 225000000000,
       chainId: 43114,
-      accounts: []
+      accounts: process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
     }
+  },
+  etherscan: {
+    apiKey: process.env.SNOWTRACE_API_KEY !== undefined ? process.env.SNOWTRACE_API_KEY : "",
   }
-}
\ No newline at end of file
+}
diff --git a/package.json b/package.json
index da307f6..9f52738 100644
--- a/package.json
+++ b/package.json
@@ -2,6 +2,7 @@
   "name": "avalanche-smart-contract-quickstart",
   "devDependencies": {
     "@nomiclabs/hardhat-ethers": "^2.0.2",
+    "@nomiclabs/hardhat-etherscan": "^2.1.8",
     "@nomiclabs/hardhat-waffle": "^2.0.1",
     "@openzeppelin/contracts": "^4.3.0",
     "@types/chai": "^4.2.21",
@@ -9,6 +10,7 @@
     "@types/node": "^16.7.1",
     "avalanche": "3.8.5",
     "chai": "^4.3.4",
+    "dotenv": "^10.0.0",
     "ethereum-waffle": "^3.4.0",
     "ethereumjs-tx": "^2.1.2",
     "ethers": "^5.4.5",
diff --git a/yarn.lock b/yarn.lock
index af3acb6..d9c2897 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4,12 +4,12 @@
 
 "@cspotcode/source-map-consumer@0.8.0":
   version "0.8.0"
-  resolved "https://registry.yarnpkg.com/@cspotcode/source-map-consumer/-/source-map-consumer-0.8.0.tgz#33bf4b7b39c178821606f669bbc447a6a629786b"
+  resolved "https://registry.npmjs.org/@cspotcode/source-map-consumer/-/source-map-consumer-0.8.0.tgz"
   integrity sha512-41qniHzTU8yAGbCp04ohlmSrZf8bkf/iJsl3V0dRGsQN/5GFfx+LbCSsCpp2gqrqjTVg/K6O8ycoV35JIwAzAg==
 
 "@cspotcode/source-map-support@0.6.1":
   version "0.6.1"
-  resolved "https://registry.yarnpkg.com/@cspotcode/source-map-support/-/source-map-support-0.6.1.tgz#118511f316e2e87ee4294761868e254d3da47960"
+  resolved "https://registry.npmjs.org/@cspotcode/source-map-support/-/source-map-support-0.6.1.tgz"
   integrity sha512-DX3Z+T5dt1ockmPdobJS/FAsQPW4V4SrWEhD2iYQT2Cb2tQsiMnYxrcUH9By/Z3B+v0S5LMBkQtV/XOBbpLEOg==
   dependencies:
     "@cspotcode/source-map-consumer" "0.8.0"
@@ -136,7 +136,7 @@
 
 "@ethereumjs/vm@^5.5.2":
   version "5.5.2"
-  resolved "https://registry.yarnpkg.com/@ethereumjs/vm/-/vm-5.5.2.tgz#918a2c1000aaa9fdbe6007a4fdc2c62833122adf"
+  resolved "https://registry.npmjs.org/@ethereumjs/vm/-/vm-5.5.2.tgz"
   integrity sha512-AydZ4wfvZAsBuFzs3xVSA2iU0hxhL8anXco3UW3oh9maVC34kTEytOfjHf06LTEfN0MF9LDQ4ciLa7If6ZN/sg==
   dependencies:
     "@ethereumjs/block" "^3.4.0"
@@ -211,6 +211,19 @@
     "@ethersproject/transactions" "^5.4.0"
     "@ethersproject/web" "^5.4.0"
 
+"@ethersproject/abstract-provider@^5.5.0":
+  version "5.5.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/abstract-provider/-/abstract-provider-5.5.1.tgz#2f1f6e8a3ab7d378d8ad0b5718460f85649710c5"
+  integrity sha512-m+MA/ful6eKbxpr99xUYeRvLkfnlqzrF8SZ46d/xFB1A7ZVknYc/sXJG0RcufF52Qn2jeFj1hhcoQ7IXjNKUqg==
+  dependencies:
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/networks" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/transactions" "^5.5.0"
+    "@ethersproject/web" "^5.5.0"
+
 "@ethersproject/abstract-signer@5.4.1", "@ethersproject/abstract-signer@^5.4.0":
   version "5.4.1"
   resolved "https://registry.npmjs.org/@ethersproject/abstract-signer/-/abstract-signer-5.4.1.tgz"
@@ -222,7 +235,18 @@
     "@ethersproject/logger" "^5.4.0"
     "@ethersproject/properties" "^5.4.0"
 
-"@ethersproject/address@5.4.0", "@ethersproject/address@>=5.0.0-beta.128", "@ethersproject/address@^5.0.4", "@ethersproject/address@^5.4.0":
+"@ethersproject/abstract-signer@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/abstract-signer/-/abstract-signer-5.5.0.tgz#590ff6693370c60ae376bf1c7ada59eb2a8dd08d"
+  integrity sha512-lj//7r250MXVLKI7sVarXAbZXbv9P50lgmJQGr2/is82EwEb8r7HrxsmMqAjTsztMYy7ohrIhGMIml+Gx4D3mA==
+  dependencies:
+    "@ethersproject/abstract-provider" "^5.5.0"
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+
+"@ethersproject/address@5.4.0", "@ethersproject/address@^5.0.2", "@ethersproject/address@^5.0.4", "@ethersproject/address@^5.4.0":
   version "5.4.0"
   resolved "https://registry.npmjs.org/@ethersproject/address/-/address-5.4.0.tgz"
   integrity sha512-SD0VgOEkcACEG/C6xavlU1Hy3m5DGSXW3CUHkaaEHbAPPsgi0coP5oNPsxau8eTlZOk/bpa/hKeCNoK5IzVI2Q==
@@ -233,6 +257,17 @@
     "@ethersproject/logger" "^5.4.0"
     "@ethersproject/rlp" "^5.4.0"
 
+"@ethersproject/address@>=5.0.0-beta.128", "@ethersproject/address@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/address/-/address-5.5.0.tgz#bcc6f576a553f21f3dd7ba17248f81b473c9c78f"
+  integrity sha512-l4Nj0eWlTUh6ro5IbPTgbpT4wRbdH5l8CQf7icF7sb/SI3Nhd9Y9HzhonTSTi6CefI0necIw7LJqQPopPLZyWw==
+  dependencies:
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/keccak256" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/rlp" "^5.5.0"
+
 "@ethersproject/base64@5.4.0", "@ethersproject/base64@^5.4.0":
   version "5.4.0"
   resolved "https://registry.npmjs.org/@ethersproject/base64/-/base64-5.4.0.tgz"
@@ -240,6 +275,13 @@
   dependencies:
     "@ethersproject/bytes" "^5.4.0"
 
+"@ethersproject/base64@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/base64/-/base64-5.5.0.tgz#881e8544e47ed976930836986e5eb8fab259c090"
+  integrity sha512-tdayUKhU1ljrlHzEWbStXazDpsx4eg1dBXUSI6+mHlYklOXoXF6lZvw8tnD6oVaWfnMxAgRSKROg3cVKtCcppA==
+  dependencies:
+    "@ethersproject/bytes" "^5.5.0"
+
 "@ethersproject/basex@5.4.0", "@ethersproject/basex@^5.4.0":
   version "5.4.0"
   resolved "https://registry.npmjs.org/@ethersproject/basex/-/basex-5.4.0.tgz"
@@ -248,7 +290,7 @@
     "@ethersproject/bytes" "^5.4.0"
     "@ethersproject/properties" "^5.4.0"
 
-"@ethersproject/bignumber@5.4.1", "@ethersproject/bignumber@>=5.0.0-beta.130", "@ethersproject/bignumber@^5.0.7", "@ethersproject/bignumber@^5.4.0":
+"@ethersproject/bignumber@5.4.1", "@ethersproject/bignumber@^5.0.7", "@ethersproject/bignumber@^5.4.0":
   version "5.4.1"
   resolved "https://registry.npmjs.org/@ethersproject/bignumber/-/bignumber-5.4.1.tgz"
   integrity sha512-fJhdxqoQNuDOk6epfM7yD6J8Pol4NUCy1vkaGAkuujZm0+lNow//MKu1hLhRiYV4BsOHyBv5/lsTjF+7hWwhJg==
@@ -257,20 +299,43 @@
     "@ethersproject/logger" "^5.4.0"
     bn.js "^4.11.9"
 
-"@ethersproject/bytes@5.4.0", "@ethersproject/bytes@>=5.0.0-beta.129", "@ethersproject/bytes@^5.0.4", "@ethersproject/bytes@^5.4.0":
+"@ethersproject/bignumber@>=5.0.0-beta.130", "@ethersproject/bignumber@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/bignumber/-/bignumber-5.5.0.tgz#875b143f04a216f4f8b96245bde942d42d279527"
+  integrity sha512-6Xytlwvy6Rn3U3gKEc1vP7nR92frHkv6wtVr95LFR3jREXiCPzdWxKQ1cx4JGQBXxcguAwjA8murlYN2TSiEbg==
+  dependencies:
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    bn.js "^4.11.9"
+
+"@ethersproject/bytes@5.4.0", "@ethersproject/bytes@^5.0.4", "@ethersproject/bytes@^5.4.0":
   version "5.4.0"
   resolved "https://registry.npmjs.org/@ethersproject/bytes/-/bytes-5.4.0.tgz"
   integrity sha512-H60ceqgTHbhzOj4uRc/83SCN9d+BSUnOkrr2intevqdtEMO1JFVZ1XL84OEZV+QjV36OaZYxtnt4lGmxcGsPfA==
   dependencies:
     "@ethersproject/logger" "^5.4.0"
 
-"@ethersproject/constants@5.4.0", "@ethersproject/constants@>=5.0.0-beta.128", "@ethersproject/constants@^5.0.4", "@ethersproject/constants@^5.4.0":
+"@ethersproject/bytes@>=5.0.0-beta.129", "@ethersproject/bytes@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/bytes/-/bytes-5.5.0.tgz#cb11c526de657e7b45d2e0f0246fb3b9d29a601c"
+  integrity sha512-ABvc7BHWhZU9PNM/tANm/Qx4ostPGadAuQzWTr3doklZOhDlmcBqclrQe/ZXUIj3K8wC28oYeuRa+A37tX9kog==
+  dependencies:
+    "@ethersproject/logger" "^5.5.0"
+
+"@ethersproject/constants@5.4.0", "@ethersproject/constants@^5.0.4", "@ethersproject/constants@^5.4.0":
   version "5.4.0"
   resolved "https://registry.npmjs.org/@ethersproject/constants/-/constants-5.4.0.tgz"
   integrity sha512-tzjn6S7sj9+DIIeKTJLjK9WGN2Tj0P++Z8ONEIlZjyoTkBuODN+0VfhAyYksKi43l1Sx9tX2VlFfzjfmr5Wl3Q==
   dependencies:
     "@ethersproject/bignumber" "^5.4.0"
 
+"@ethersproject/constants@>=5.0.0-beta.128", "@ethersproject/constants@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/constants/-/constants-5.5.0.tgz#d2a2cd7d94bd1d58377d1d66c4f53c9be4d0a45e"
+  integrity sha512-2MsRRVChkvMWR+GyMGY4N1sAX9Mt3J9KykCsgUFd/1mwS0UH1qw+Bv9k1UJb3X3YJYFco9H20pjSlOIfCG5HYQ==
+  dependencies:
+    "@ethersproject/bignumber" "^5.5.0"
+
 "@ethersproject/contracts@5.4.1":
   version "5.4.1"
   resolved "https://registry.npmjs.org/@ethersproject/contracts/-/contracts-5.4.1.tgz"
@@ -287,7 +352,7 @@
     "@ethersproject/properties" "^5.4.0"
     "@ethersproject/transactions" "^5.4.0"
 
-"@ethersproject/hash@5.4.0", "@ethersproject/hash@>=5.0.0-beta.128", "@ethersproject/hash@^5.0.4", "@ethersproject/hash@^5.4.0":
+"@ethersproject/hash@5.4.0", "@ethersproject/hash@^5.0.4", "@ethersproject/hash@^5.4.0":
   version "5.4.0"
   resolved "https://registry.npmjs.org/@ethersproject/hash/-/hash-5.4.0.tgz"
   integrity sha512-xymAM9tmikKgbktOCjW60Z5sdouiIIurkZUr9oW5NOex5uwxrbsYG09kb5bMcNjlVeJD3yPivTNzViIs1GCbqA==
@@ -301,6 +366,20 @@
     "@ethersproject/properties" "^5.4.0"
     "@ethersproject/strings" "^5.4.0"
 
+"@ethersproject/hash@>=5.0.0-beta.128":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/hash/-/hash-5.5.0.tgz#7cee76d08f88d1873574c849e0207dcb32380cc9"
+  integrity sha512-dnGVpK1WtBjmnp3mUT0PlU2MpapnwWI0PibldQEq1408tQBAbZpPidkWoVVuNMOl/lISO3+4hXZWCL3YV7qzfg==
+  dependencies:
+    "@ethersproject/abstract-signer" "^5.5.0"
+    "@ethersproject/address" "^5.5.0"
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/keccak256" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/strings" "^5.5.0"
+
 "@ethersproject/hdnode@5.4.0", "@ethersproject/hdnode@^5.4.0":
   version "5.4.0"
   resolved "https://registry.npmjs.org/@ethersproject/hdnode/-/hdnode-5.4.0.tgz"
@@ -338,7 +417,7 @@
     aes-js "3.0.0"
     scrypt-js "3.0.1"
 
-"@ethersproject/keccak256@5.4.0", "@ethersproject/keccak256@>=5.0.0-beta.127", "@ethersproject/keccak256@^5.0.3", "@ethersproject/keccak256@^5.4.0":
+"@ethersproject/keccak256@5.4.0", "@ethersproject/keccak256@^5.0.3", "@ethersproject/keccak256@^5.4.0":
   version "5.4.0"
   resolved "https://registry.npmjs.org/@ethersproject/keccak256/-/keccak256-5.4.0.tgz"
   integrity sha512-FBI1plWet+dPUvAzPAeHzRKiPpETQzqSUWR1wXJGHVWi4i8bOSrpC3NwpkPjgeXG7MnugVc1B42VbfnQikyC/A==
@@ -346,11 +425,24 @@
     "@ethersproject/bytes" "^5.4.0"
     js-sha3 "0.5.7"
 
-"@ethersproject/logger@5.4.0", "@ethersproject/logger@>=5.0.0-beta.129", "@ethersproject/logger@^5.0.5", "@ethersproject/logger@^5.4.0":
+"@ethersproject/keccak256@>=5.0.0-beta.127", "@ethersproject/keccak256@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/keccak256/-/keccak256-5.5.0.tgz#e4b1f9d7701da87c564ffe336f86dcee82983492"
+  integrity sha512-5VoFCTjo2rYbBe1l2f4mccaRFN/4VQEYFwwn04aJV2h7qf4ZvI2wFxUE1XOX+snbwCLRzIeikOqtAoPwMza9kg==
+  dependencies:
+    "@ethersproject/bytes" "^5.5.0"
+    js-sha3 "0.8.0"
+
+"@ethersproject/logger@5.4.0", "@ethersproject/logger@^5.0.5", "@ethersproject/logger@^5.4.0":
   version "5.4.0"
   resolved "https://registry.npmjs.org/@ethersproject/logger/-/logger-5.4.0.tgz"
   integrity sha512-xYdWGGQ9P2cxBayt64d8LC8aPFJk6yWCawQi/4eJ4+oJdMMjEBMrIcIMZ9AxhwpPVmnBPrsB10PcXGmGAqgUEQ==
 
+"@ethersproject/logger@>=5.0.0-beta.129", "@ethersproject/logger@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/logger/-/logger-5.5.0.tgz#0c2caebeff98e10aefa5aef27d7441c7fd18cf5d"
+  integrity sha512-rIY/6WPm7T8n3qS2vuHTUBPdXHl+rGxWxW5okDfo9J4Z0+gRRZT0msvUdIJkE4/HS29GUMziwGaaKO2bWONBrg==
+
 "@ethersproject/networks@5.4.2", "@ethersproject/networks@^5.4.0":
   version "5.4.2"
   resolved "https://registry.npmjs.org/@ethersproject/networks/-/networks-5.4.2.tgz"
@@ -358,6 +450,13 @@
   dependencies:
     "@ethersproject/logger" "^5.4.0"
 
+"@ethersproject/networks@^5.5.0":
+  version "5.5.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/networks/-/networks-5.5.1.tgz#b7f7b9fb88dec1ea48f739b7fb9621311aa8ce6c"
+  integrity sha512-tYRDM4zZtSUcKnD4UMuAlj7SeXH/k5WC4SP2u1Pn57++JdXHkRu2zwNkgNogZoxHzhm9Q6qqurDBVptHOsW49Q==
+  dependencies:
+    "@ethersproject/logger" "^5.5.0"
+
 "@ethersproject/pbkdf2@5.4.0", "@ethersproject/pbkdf2@^5.4.0":
   version "5.4.0"
   resolved "https://registry.npmjs.org/@ethersproject/pbkdf2/-/pbkdf2-5.4.0.tgz"
@@ -366,16 +465,23 @@
     "@ethersproject/bytes" "^5.4.0"
     "@ethersproject/sha2" "^5.4.0"
 
-"@ethersproject/properties@5.4.0", "@ethersproject/properties@>=5.0.0-beta.131", "@ethersproject/properties@^5.0.3", "@ethersproject/properties@^5.4.0":
+"@ethersproject/properties@5.4.0", "@ethersproject/properties@^5.0.3", "@ethersproject/properties@^5.4.0":
   version "5.4.0"
   resolved "https://registry.npmjs.org/@ethersproject/properties/-/properties-5.4.0.tgz"
   integrity sha512-7jczalGVRAJ+XSRvNA6D5sAwT4gavLq3OXPuV/74o3Rd2wuzSL035IMpIMgei4CYyBdialJMrTqkOnzccLHn4A==
   dependencies:
     "@ethersproject/logger" "^5.4.0"
 
+"@ethersproject/properties@>=5.0.0-beta.131", "@ethersproject/properties@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/properties/-/properties-5.5.0.tgz#61f00f2bb83376d2071baab02245f92070c59995"
+  integrity sha512-l3zRQg3JkD8EL3CPjNK5g7kMx4qSwiR60/uk5IVjd3oq1MZR5qUg40CNOoEJoX5wc3DyY5bt9EbMk86C7x0DNA==
+  dependencies:
+    "@ethersproject/logger" "^5.5.0"
+
 "@ethersproject/providers@5.4.3":
   version "5.4.3"
-  resolved "https://registry.yarnpkg.com/@ethersproject/providers/-/providers-5.4.3.tgz#4cd7ccd9e12bc3875b33df8b24abf735663958a5"
+  resolved "https://registry.npmjs.org/@ethersproject/providers/-/providers-5.4.3.tgz"
   integrity sha512-VURwkaWPoUj7jq9NheNDT5Iyy64Qcyf6BOFDwVdHsmLmX/5prNjFrgSX3GHPE4z1BRrVerDxe2yayvXKFm/NNg==
   dependencies:
     "@ethersproject/abstract-provider" "^5.4.0"
@@ -439,6 +545,14 @@
     "@ethersproject/bytes" "^5.4.0"
     "@ethersproject/logger" "^5.4.0"
 
+"@ethersproject/rlp@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/rlp/-/rlp-5.5.0.tgz#530f4f608f9ca9d4f89c24ab95db58ab56ab99a0"
+  integrity sha512-hLv8XaQ8PTI9g2RHoQGf/WSxBfTB/NudRacbzdxmst5VHAqd1sMibWG7SENzT5Dj3yZ3kJYx+WiRYEcQTAkcYA==
+  dependencies:
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+
 "@ethersproject/sha2@5.4.0", "@ethersproject/sha2@^5.4.0":
   version "5.4.0"
   resolved "https://registry.npmjs.org/@ethersproject/sha2/-/sha2-5.4.0.tgz"
@@ -460,6 +574,18 @@
     elliptic "6.5.4"
     hash.js "1.1.7"
 
+"@ethersproject/signing-key@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/signing-key/-/signing-key-5.5.0.tgz#2aa37169ce7e01e3e80f2c14325f624c29cedbe0"
+  integrity sha512-5VmseH7qjtNmDdZBswavhotYbWB0bOwKIlOTSlX14rKn5c11QmJwGt4GHeo7NrL/Ycl7uo9AHvEqs5xZgFBTng==
+  dependencies:
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    bn.js "^4.11.9"
+    elliptic "6.5.4"
+    hash.js "1.1.7"
+
 "@ethersproject/solidity@5.4.0":
   version "5.4.0"
   resolved "https://registry.npmjs.org/@ethersproject/solidity/-/solidity-5.4.0.tgz"
@@ -471,7 +597,7 @@
     "@ethersproject/sha2" "^5.4.0"
     "@ethersproject/strings" "^5.4.0"
 
-"@ethersproject/strings@5.4.0", "@ethersproject/strings@>=5.0.0-beta.130", "@ethersproject/strings@^5.0.4", "@ethersproject/strings@^5.4.0":
+"@ethersproject/strings@5.4.0", "@ethersproject/strings@^5.0.4", "@ethersproject/strings@^5.4.0":
   version "5.4.0"
   resolved "https://registry.npmjs.org/@ethersproject/strings/-/strings-5.4.0.tgz"
   integrity sha512-k/9DkH5UGDhv7aReXLluFG5ExurwtIpUfnDNhQA29w896Dw3i4uDTz01Quaptbks1Uj9kI8wo9tmW73wcIEaWA==
@@ -480,6 +606,15 @@
     "@ethersproject/constants" "^5.4.0"
     "@ethersproject/logger" "^5.4.0"
 
+"@ethersproject/strings@>=5.0.0-beta.130", "@ethersproject/strings@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/strings/-/strings-5.5.0.tgz#e6784d00ec6c57710755699003bc747e98c5d549"
+  integrity sha512-9fy3TtF5LrX/wTrBaT8FGE6TDJyVjOvXynXJz5MT5azq+E6D92zuKNx7i29sWW2FjVOaWjAsiZ1ZWznuduTIIQ==
+  dependencies:
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/constants" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+
 "@ethersproject/transactions@5.4.0", "@ethersproject/transactions@^5.0.0-beta.135", "@ethersproject/transactions@^5.4.0":
   version "5.4.0"
   resolved "https://registry.npmjs.org/@ethersproject/transactions/-/transactions-5.4.0.tgz"
@@ -495,6 +630,21 @@
     "@ethersproject/rlp" "^5.4.0"
     "@ethersproject/signing-key" "^5.4.0"
 
+"@ethersproject/transactions@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/transactions/-/transactions-5.5.0.tgz#7e9bf72e97bcdf69db34fe0d59e2f4203c7a2908"
+  integrity sha512-9RZYSKX26KfzEd/1eqvv8pLauCKzDTub0Ko4LfIgaERvRuwyaNV78mJs7cpIgZaDl6RJui4o49lHwwCM0526zA==
+  dependencies:
+    "@ethersproject/address" "^5.5.0"
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/constants" "^5.5.0"
+    "@ethersproject/keccak256" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/rlp" "^5.5.0"
+    "@ethersproject/signing-key" "^5.5.0"
+
 "@ethersproject/units@5.4.0":
   version "5.4.0"
   resolved "https://registry.npmjs.org/@ethersproject/units/-/units-5.4.0.tgz"
@@ -536,6 +686,17 @@
     "@ethersproject/properties" "^5.4.0"
     "@ethersproject/strings" "^5.4.0"
 
+"@ethersproject/web@^5.5.0":
+  version "5.5.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/web/-/web-5.5.1.tgz#cfcc4a074a6936c657878ac58917a61341681316"
+  integrity sha512-olvLvc1CB12sREc1ROPSHTdFCdvMh0J5GSJYiQg2D0hdD4QmJDy8QYDb1CvoqD/bF1c++aeKv2sR5uduuG9dQg==
+  dependencies:
+    "@ethersproject/base64" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/strings" "^5.5.0"
+
 "@ethersproject/wordlists@5.4.0", "@ethersproject/wordlists@^5.4.0":
   version "5.4.0"
   resolved "https://registry.npmjs.org/@ethersproject/wordlists/-/wordlists-5.4.0.tgz"
@@ -549,9 +710,22 @@
 
 "@nomiclabs/hardhat-ethers@^2.0.2":
   version "2.0.2"
-  resolved "https://registry.yarnpkg.com/@nomiclabs/hardhat-ethers/-/hardhat-ethers-2.0.2.tgz#c472abcba0c5185aaa4ad4070146e95213c68511"
+  resolved "https://registry.npmjs.org/@nomiclabs/hardhat-ethers/-/hardhat-ethers-2.0.2.tgz"
   integrity sha512-6quxWe8wwS4X5v3Au8q1jOvXYEPkS1Fh+cME5u6AwNdnI4uERvPlVjlgRWzpnb+Rrt1l/cEqiNRH9GlsBMSDQg==
 
+"@nomiclabs/hardhat-etherscan@^2.1.8":
+  version "2.1.8"
+  resolved "https://registry.npmjs.org/@nomiclabs/hardhat-etherscan/-/hardhat-etherscan-2.1.8.tgz"
+  integrity sha512-0+rj0SsZotVOcTLyDOxnOc3Gulo8upo0rsw/h+gBPcmtj91YqYJNhdARHoBxOhhE8z+5IUQPx+Dii04lXT14PA==
+  dependencies:
+    "@ethersproject/abi" "^5.1.2"
+    "@ethersproject/address" "^5.0.2"
+    cbor "^5.0.2"
+    debug "^4.1.1"
+    fs-extra "^7.0.1"
+    node-fetch "^2.6.0"
+    semver "^6.3.0"
+
 "@nomiclabs/hardhat-waffle@^2.0.1":
   version "2.0.1"
   resolved "https://registry.npmjs.org/@nomiclabs/hardhat-waffle/-/hardhat-waffle-2.0.1.tgz"
@@ -562,7 +736,7 @@
 
 "@openzeppelin/contracts@^4.3.0":
   version "4.3.0"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.3.0.tgz#345236d4ec73ef381ab4907c6ef66fd55e5dedad"
+  resolved "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.3.0.tgz"
   integrity sha512-+uBDl/TrmR0Kch6mq3tuxMex/fK7huR6+fQMae+zJk1K5T+dp0pFl12Hbc+1L6oYMXoyDSBJ8zqhRIntrREDFA==
 
 "@resolver-engine/core@^0.3.3":
@@ -703,22 +877,22 @@
 
 "@tsconfig/node10@^1.0.7":
   version "1.0.8"
-  resolved "https://registry.yarnpkg.com/@tsconfig/node10/-/node10-1.0.8.tgz#c1e4e80d6f964fbecb3359c43bd48b40f7cadad9"
+  resolved "https://registry.npmjs.org/@tsconfig/node10/-/node10-1.0.8.tgz"
   integrity sha512-6XFfSQmMgq0CFLY1MslA/CPUfhIL919M1rMsa5lP2P097N2Wd1sSX0tx1u4olM16fLNhtHZpRhedZJphNJqmZg==
 
 "@tsconfig/node12@^1.0.7":
   version "1.0.9"
-  resolved "https://registry.yarnpkg.com/@tsconfig/node12/-/node12-1.0.9.tgz#62c1f6dee2ebd9aead80dc3afa56810e58e1a04c"
+  resolved "https://registry.npmjs.org/@tsconfig/node12/-/node12-1.0.9.tgz"
   integrity sha512-/yBMcem+fbvhSREH+s14YJi18sp7J9jpuhYByADT2rypfajMZZN4WQ6zBGgBKp53NKmqI36wFYDb3yaMPurITw==
 
 "@tsconfig/node14@^1.0.0":
   version "1.0.1"
-  resolved "https://registry.yarnpkg.com/@tsconfig/node14/-/node14-1.0.1.tgz#95f2d167ffb9b8d2068b0b235302fafd4df711f2"
+  resolved "https://registry.npmjs.org/@tsconfig/node14/-/node14-1.0.1.tgz"
   integrity sha512-509r2+yARFfHHE7T6Puu2jjkoycftovhXRqW328PDXTVGKihlb1P8Z9mMZH04ebyajfRY7dedfGynlrFHJUQCg==
 
 "@tsconfig/node16@^1.0.2":
   version "1.0.2"
-  resolved "https://registry.yarnpkg.com/@tsconfig/node16/-/node16-1.0.2.tgz#423c77877d0569db20e1fc80885ac4118314010e"
+  resolved "https://registry.npmjs.org/@tsconfig/node16/-/node16-1.0.2.tgz"
   integrity sha512-eZxlbI8GZscaGS7kkc/trHTT5xgrjH3/1n2JDwusC9iahPKWMRvRjJSAN5mCXviuTGQ/lHnhvv8Q1YTpnfz9gA==
 
 "@typechain/ethers-v5@^2.0.0":
@@ -780,7 +954,7 @@
 
 "@types/mocha@^9.0.0":
   version "9.0.0"
-  resolved "https://registry.yarnpkg.com/@types/mocha/-/mocha-9.0.0.tgz#3205bcd15ada9bc681ac20bef64e9e6df88fd297"
+  resolved "https://registry.npmjs.org/@types/mocha/-/mocha-9.0.0.tgz"
   integrity sha512-scN0hAWyLVAvLR9AyW7HoFF5sJZglyBsbPuHO4fv7JRvfmPBMfp1ozWqOf/e4wwPNxezBZXRfWzMb6iFLgEVRA==
 
 "@types/node-fetch@^2.5.5":
@@ -791,10 +965,10 @@
     "@types/node" "*"
     form-data "^3.0.0"
 
-"@types/node@*":
-  version "15.14.8"
-  resolved "https://registry.npmjs.org/@types/node/-/node-15.14.8.tgz"
-  integrity sha512-+ZjmmoGV7WBwhzNh/GkwehB7uyXn9HFwzQUfj9pbyR8eFAq20Qguoh93sPbWzzhsbhTme6YE92/iJ54Z0WRH7A==
+"@types/node@*", "@types/node@^16.7.1":
+  version "16.7.1"
+  resolved "https://registry.npmjs.org/@types/node/-/node-16.7.1.tgz"
+  integrity sha512-ncRdc45SoYJ2H4eWU9ReDfp3vtFqDYhjOsKlFFUDEn8V1Bgr2RjYal8YT5byfadWIRluhPFU6JiDOl0H6Sl87A==
 
 "@types/node@11.11.6":
   version "11.11.6"
@@ -806,11 +980,6 @@
   resolved "https://registry.npmjs.org/@types/node/-/node-12.20.19.tgz"
   integrity sha512-niAuZrwrjKck4+XhoCw6AAVQBENHftpXw9F4ryk66fTgYaKQ53R4FI7c9vUGGw5vQis1HKBHDR1gcYI/Bq1xvw==
 
-"@types/node@^16.7.1":
-  version "16.7.1"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-16.7.1.tgz#c6b9198178da504dfca1fd0be9b2e1002f1586f0"
-  integrity sha512-ncRdc45SoYJ2H4eWU9ReDfp3vtFqDYhjOsKlFFUDEn8V1Bgr2RjYal8YT5byfadWIRluhPFU6JiDOl0H6Sl87A==
-
 "@types/pbkdf2@^3.0.0":
   version "3.1.0"
   resolved "https://registry.npmjs.org/@types/pbkdf2/-/pbkdf2-3.1.0.tgz"
@@ -937,12 +1106,12 @@ accepts@~1.3.7:
 
 acorn-walk@^8.1.1:
   version "8.1.1"
-  resolved "https://registry.yarnpkg.com/acorn-walk/-/acorn-walk-8.1.1.tgz#3ddab7f84e4a7e2313f6c414c5b7dac85f4e3ebc"
+  resolved "https://registry.npmjs.org/acorn-walk/-/acorn-walk-8.1.1.tgz"
   integrity sha512-FbJdceMlPHEAWJOILDk1fXD8lnTlEIWFkqtfk+MvmL5q/qlHfN7GEHcsFZWt/Tea9jRNPWUZG4G976nqAAmU9w==
 
 acorn@^8.4.1:
   version "8.4.1"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-8.4.1.tgz#56c36251fc7cabc7096adc18f05afe814321a28c"
+  resolved "https://registry.npmjs.org/acorn/-/acorn-8.4.1.tgz"
   integrity sha512-asabaBSkEKosYKMITunzX177CXxQ4Q8BSSzMTKD+FefUhipQC70gfW5SiUDhYQ3vk8G+81HqQk7Fv9OXwwn9KA==
 
 adm-zip@^0.4.16:
@@ -1104,7 +1273,7 @@ assert-plus@1.0.0, assert-plus@^1.0.0:
 
 assert@2.0.0:
   version "2.0.0"
-  resolved "https://registry.yarnpkg.com/assert/-/assert-2.0.0.tgz#95fc1c616d48713510680f2eaf2d10dd22e02d32"
+  resolved "https://registry.npmjs.org/assert/-/assert-2.0.0.tgz"
   integrity sha512-se5Cd+js9dXJnu6Ag2JFc00t+HmHOen+8Q+L7O9zI0PqQXr20uk2J0XQqMxZEeo5U50o8Nvmmx7dZrl+Ufr35A==
   dependencies:
     es6-object-assign "^1.1.0"
@@ -1170,7 +1339,7 @@ available-typed-arrays@^1.0.4:
 
 avalanche@3.8.5:
   version "3.8.5"
-  resolved "https://registry.yarnpkg.com/avalanche/-/avalanche-3.8.5.tgz#08057db6821982cfbe817c44c21c1698a6cf7e2b"
+  resolved "https://registry.npmjs.org/avalanche/-/avalanche-3.8.5.tgz"
   integrity sha512-uWQlPRBgly/OfNbN0D+BLcVzI/ZrUqwMUGOyiJ8z+mGn+A5ySAhz5VxW3YYmAHbNn9U5tu339iChitE9+Qr9ng==
   dependencies:
     assert "2.0.0"
@@ -1776,10 +1945,10 @@ bech32@1.1.4:
 
 bech32@2.0.0:
   version "2.0.0"
-  resolved "https://registry.yarnpkg.com/bech32/-/bech32-2.0.0.tgz#078d3686535075c8c79709f054b1b226a133b355"
+  resolved "https://registry.npmjs.org/bech32/-/bech32-2.0.0.tgz"
   integrity sha512-LcknSilhIGatDAsY1ak2I8VtGaHNhgMSYVxFrGLXv+xLHytaKZKcaUJJUE7qmBr7h33o5YQwP55pMI0xmkpJwg==
 
-bignumber.js@^9.0.0:
+bignumber.js@^9.0.0, bignumber.js@^9.0.1:
   version "9.0.1"
   resolved "https://registry.npmjs.org/bignumber.js/-/bignumber.js-9.0.1.tgz"
   integrity sha512-IdZR9mh6ahOBv/hYGiXyVuyCetmGJhtYkqLBpTStdhEGjegpPlUawydyaF3pbIOFynJTpllEs+NP+CS9jKFLjA==
@@ -1802,7 +1971,7 @@ bip39@2.5.0:
 
 bip39@3.0.4:
   version "3.0.4"
-  resolved "https://registry.yarnpkg.com/bip39/-/bip39-3.0.4.tgz#5b11fed966840b5e1b8539f0f54ab6392969b2a0"
+  resolved "https://registry.npmjs.org/bip39/-/bip39-3.0.4.tgz"
   integrity sha512-YZKQlb752TrUWqHWj7XAwCSjYEgGAk+/Aas3V7NyjQeZYsztO8JnQUaCWhcnL4T+jL8nvB8typ2jRPzTlgugNw==
   dependencies:
     "@types/node" "11.11.6"
@@ -1830,12 +1999,12 @@ bn.js@5.2.0, bn.js@^5.0.0, bn.js@^5.1.1, bn.js@^5.1.2:
   resolved "https://registry.npmjs.org/bn.js/-/bn.js-5.2.0.tgz"
   integrity sha512-D7iWRBvnZE8ecXiLj/9wbxH7Tk79fAh8IHaTNq1RWRixsS02W+5qS+iE9yq6RYl0asXx5tw0bLhmT5pIfbSquw==
 
-bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.11.0, bn.js@^4.11.1, bn.js@^4.11.6, bn.js@^4.11.8:
+bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.11.0, bn.js@^4.11.6, bn.js@^4.11.8:
   version "4.11.8"
   resolved "https://registry.npmjs.org/bn.js/-/bn.js-4.11.8.tgz"
   integrity sha512-ItfYfPLkWHUjckQCk8xC+LwxgK8NYcXywGigJgSwOP8Y2iyWT4f2vsZnoOXTTbo+o5yXmIUJ4gn5538SO5S3gA==
 
-bn.js@^4.10.0, bn.js@^4.11.9, bn.js@^4.8.0:
+bn.js@^4.10.0, bn.js@^4.11.1, bn.js@^4.11.9, bn.js@^4.8.0:
   version "4.12.0"
   resolved "https://registry.npmjs.org/bn.js/-/bn.js-4.12.0.tgz"
   integrity sha512-c98Bf3tPniI+scsdk237ku1Dc3ujXQTSgyiPUDEOe7tRkhrqridvh8klBv0HCEso1OLOYcHuCv/cS6DNxKH+ZA==
@@ -2095,15 +2264,23 @@ camelcase@^5.0.0:
   integrity sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==
 
 caniuse-lite@^1.0.30000844:
-  version "1.0.30001251"
-  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001251.tgz#6853a606ec50893115db660f82c094d18f096d85"
-  integrity sha512-HOe1r+9VkU4TFmnU70z+r7OLmtR+/chB1rdcJUeQlAinjEeb0cKL20tlAtOagNZhbrtLnCvV19B4FmF1rgzl6A==
+  version "1.0.30001285"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001285.tgz#fe1e52229187e11d6670590790d669b9e03315b7"
+  integrity sha512-KAOkuUtcQ901MtmvxfKD+ODHH9YVDYnBt+TGYSz2KIfnq22CiArbUxXPN9067gNbgMlnNYRSwho8OPXZPALB9Q==
 
 caseless@~0.12.0:
   version "0.12.0"
   resolved "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz"
   integrity sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw=
 
+cbor@^5.0.2:
+  version "5.2.0"
+  resolved "https://registry.npmjs.org/cbor/-/cbor-5.2.0.tgz"
+  integrity sha512-5IMhi9e1QU76ppa5/ajP1BmMWZ2FHkhAhjeVKQ/EFCgYSEaeVaoGtL7cxJskf9oCCk+XjzaIdc3IuU/dbA/o2A==
+  dependencies:
+    bignumber.js "^9.0.1"
+    nofilter "^1.0.4"
+
 chai@^4.3.4:
   version "4.3.4"
   resolved "https://registry.npmjs.org/chai/-/chai-4.3.4.tgz"
@@ -2508,7 +2685,7 @@ debug@3.2.6:
   dependencies:
     ms "^2.1.1"
 
-debug@4, debug@^4.1.1:
+debug@4:
   version "4.3.2"
   resolved "https://registry.npmjs.org/debug/-/debug-4.3.2.tgz"
   integrity sha512-mOp8wKcvj7XxC78zLgw/ZA+6TSgkoE2C/ienthhRD298T7UNwAg9diBpLRxC0mOezLl4B0xV7M0cCO6P/O0Xhw==
@@ -2522,6 +2699,13 @@ debug@^3.1.0:
   dependencies:
     ms "^2.1.1"
 
+debug@^4.1.1:
+  version "4.3.3"
+  resolved "https://registry.npmjs.org/debug/-/debug-4.3.3.tgz"
+  integrity sha512-/zxw5+vh1Tfv+4Qn7a5nsbcJKPaSvCDhojn6FEl9vupwK2VCSDtEiEtqr8DFtzYFOdz63LBkxec7DYuc2jon6Q==
+  dependencies:
+    ms "2.1.2"
+
 decamelize@^1.1.1, decamelize@^1.2.0:
   version "1.2.0"
   resolved "https://registry.npmjs.org/decamelize/-/decamelize-1.2.0.tgz"
@@ -2674,6 +2858,11 @@ dom-walk@^0.1.0:
   resolved "https://registry.npmjs.org/dom-walk/-/dom-walk-0.1.2.tgz"
   integrity sha512-6QvTW9mrGeIegrFXdtQi9pk7O/nSK6lSdXW2eqUspN5LWD7UTji2Fqw5V2YLjBpHEoU9Xl/eUWNpDeZvoyOv2w==
 
+dotenv@^10.0.0:
+  version "10.0.0"
+  resolved "https://registry.npmjs.org/dotenv/-/dotenv-10.0.0.tgz"
+  integrity sha512-rlBi9d8jpv9Sf1klPjNfFAuWDjKLwTIJJ/VxtoTwIR6hnZxcEOQCZg2oIL3MWBYw5GpUDKOEnND7LXTbIpQ03Q==
+
 dotignore@~0.1.2:
   version "0.1.2"
   resolved "https://registry.npmjs.org/dotignore/-/dotignore-0.1.2.tgz"
@@ -2700,9 +2889,9 @@ ee-first@1.1.1:
   integrity sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0=
 
 electron-to-chromium@^1.3.47:
-  version "1.3.812"
-  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.812.tgz#4c4fb407e0e1335056097f172e9f2c0a09efe77d"
-  integrity sha512-7KiUHsKAWtSrjVoTSzxQ0nPLr/a+qoxNZwkwd9LkylTOgOXSVXkQbpIVT0WAUQcI5gXq3SwOTCrK+WfINHOXQg==
+  version "1.4.11"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.4.11.tgz#303c9deebbe90c68bf5c2c81a88a3bf4522c8810"
+  integrity sha512-2OhsaYgsWGhWjx2et8kaUcdktPbBGjKM2X0BReUCKcSCPttEY+hz2zie820JLbttU8jwL92+JJysWwkut3wZgA==
 
 elliptic@6.5.4, elliptic@^6.4.0, elliptic@^6.5.2, elliptic@^6.5.3:
   version "6.5.4"
@@ -2811,6 +3000,32 @@ es-abstract@^1.18.0-next.2, es-abstract@^1.18.5:
     string.prototype.trimstart "^1.0.4"
     unbox-primitive "^1.0.1"
 
+es-abstract@^1.19.1:
+  version "1.19.1"
+  resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.19.1.tgz#d4885796876916959de78edaa0df456627115ec3"
+  integrity sha512-2vJ6tjA/UfqLm2MPs7jxVybLoB8i1t1Jd9R3kISld20sIxPcTbLuggQOUxeWeAvIUkduv/CfMjuh4WmiXr2v9w==
+  dependencies:
+    call-bind "^1.0.2"
+    es-to-primitive "^1.2.1"
+    function-bind "^1.1.1"
+    get-intrinsic "^1.1.1"
+    get-symbol-description "^1.0.0"
+    has "^1.0.3"
+    has-symbols "^1.0.2"
+    internal-slot "^1.0.3"
+    is-callable "^1.2.4"
+    is-negative-zero "^2.0.1"
+    is-regex "^1.1.4"
+    is-shared-array-buffer "^1.0.1"
+    is-string "^1.0.7"
+    is-weakref "^1.0.1"
+    object-inspect "^1.11.0"
+    object-keys "^1.1.1"
+    object.assign "^4.1.2"
+    string.prototype.trimend "^1.0.4"
+    string.prototype.trimstart "^1.0.4"
+    unbox-primitive "^1.0.1"
+
 es-to-primitive@^1.2.1:
   version "1.2.1"
   resolved "https://registry.npmjs.org/es-to-primitive/-/es-to-primitive-1.2.1.tgz"
@@ -2840,7 +3055,7 @@ es6-iterator@~2.0.3:
 
 es6-object-assign@^1.1.0:
   version "1.1.0"
-  resolved "https://registry.yarnpkg.com/es6-object-assign/-/es6-object-assign-1.1.0.tgz#c2c3582656247c39ea107cb1e6652b6f9f24523c"
+  resolved "https://registry.npmjs.org/es6-object-assign/-/es6-object-assign-1.1.0.tgz"
   integrity sha1-wsNYJlYkfDnqEHyx5mUrb58kUjw=
 
 es6-symbol@^3.1.1, es6-symbol@~3.1.3:
@@ -2967,14 +3182,6 @@ eth-sig-util@3.0.0:
     tweetnacl "^1.0.0"
     tweetnacl-util "^0.15.0"
 
-eth-sig-util@^1.4.2:
-  version "1.4.2"
-  resolved "https://registry.yarnpkg.com/eth-sig-util/-/eth-sig-util-1.4.2.tgz#8d958202c7edbaae839707fba6f09ff327606210"
-  integrity sha1-jZWCAsftuq6Dlwf7pvCf8ydgYhA=
-  dependencies:
-    ethereumjs-abi "git+https://github.com/ethereumjs/ethereumjs-abi.git"
-    ethereumjs-util "^5.1.1"
-
 eth-sig-util@^2.5.2:
   version "2.5.4"
   resolved "https://registry.npmjs.org/eth-sig-util/-/eth-sig-util-2.5.4.tgz"
@@ -3051,7 +3258,7 @@ ethereum-cryptography@^0.1.2, ethereum-cryptography@^0.1.3:
 
 ethereum-waffle@^3.4.0:
   version "3.4.0"
-  resolved "https://registry.yarnpkg.com/ethereum-waffle/-/ethereum-waffle-3.4.0.tgz#990b3c6c26db9c2dd943bf26750a496f60c04720"
+  resolved "https://registry.npmjs.org/ethereum-waffle/-/ethereum-waffle-3.4.0.tgz"
   integrity sha512-ADBqZCkoSA5Isk486ntKJVjFEawIiC+3HxNqpJqONvh3YXBTNiRfXvJtGuAFLXPG91QaqkGqILEHANAo7j/olQ==
   dependencies:
     "@ethereum-waffle/chai" "^3.4.0"
@@ -3076,13 +3283,6 @@ ethereumjs-abi@0.6.8, ethereumjs-abi@^0.6.8:
     bn.js "^4.11.8"
     ethereumjs-util "^6.0.0"
 
-"ethereumjs-abi@git+https://github.com/ethereumjs/ethereumjs-abi.git":
-  version "0.6.8"
-  resolved "git+https://github.com/ethereumjs/ethereumjs-abi.git#ee3994657fa7a427238e6ba92a84d0b529bbcde0"
-  dependencies:
-    bn.js "^4.11.8"
-    ethereumjs-util "^6.0.0"
-
 ethereumjs-account@3.0.0, ethereumjs-account@^3.0.0:
   version "3.0.0"
   resolved "https://registry.npmjs.org/ethereumjs-account/-/ethereumjs-account-3.0.0.tgz"
@@ -3202,9 +3402,9 @@ ethereumjs-util@^5.0.0, ethereumjs-util@^5.0.1, ethereumjs-util@^5.1.1, ethereum
     rlp "^2.0.0"
     safe-buffer "^5.1.1"
 
-ethereumjs-util@^7.0.10, ethereumjs-util@^7.0.2, ethereumjs-util@^7.0.7, ethereumjs-util@^7.1.0:
+ethereumjs-util@^7.0.10, ethereumjs-util@^7.0.7, ethereumjs-util@^7.1.0:
   version "7.1.0"
-  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-7.1.0.tgz#e2b43a30bfcdbcb432a4eb42bd5f2393209b3fd5"
+  resolved "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-7.1.0.tgz"
   integrity sha512-kR+vhu++mUDARrsMMhsjjzPduRVAeundLGXucGRHF3B4oEltOUspfgCVco4kckucj3FMlLaZHUl9n7/kdmr6Tw==
   dependencies:
     "@types/bn.js" "^5.1.0"
@@ -3214,6 +3414,17 @@ ethereumjs-util@^7.0.10, ethereumjs-util@^7.0.2, ethereumjs-util@^7.0.7, ethereu
     ethjs-util "0.1.6"
     rlp "^2.2.4"
 
+ethereumjs-util@^7.0.2:
+  version "7.1.3"
+  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-7.1.3.tgz#b55d7b64dde3e3e45749e4c41288238edec32d23"
+  integrity sha512-y+82tEbyASO0K0X1/SRhbJJoAlfcvq8JbrG4a5cjrOks7HS/36efU/0j2flxCPOUM++HFahk33kr/ZxyC4vNuw==
+  dependencies:
+    "@types/bn.js" "^5.1.0"
+    bn.js "^5.1.2"
+    create-hash "^1.1.2"
+    ethereum-cryptography "^0.1.3"
+    rlp "^2.2.4"
+
 ethereumjs-vm@4.2.0:
   version "4.2.0"
   resolved "https://registry.npmjs.org/ethereumjs-vm/-/ethereumjs-vm-4.2.0.tgz"
@@ -3269,7 +3480,7 @@ ethereumjs-wallet@0.6.5:
 
 ethers@5.4.4:
   version "5.4.4"
-  resolved "https://registry.yarnpkg.com/ethers/-/ethers-5.4.4.tgz#35cce530505b84c699da944162195cfb3f894947"
+  resolved "https://registry.npmjs.org/ethers/-/ethers-5.4.4.tgz"
   integrity sha512-zaTs8yaDjfb0Zyj8tT6a+/hEkC+kWAA350MWRp6yP5W7NdGcURRPMOpOU+6GtkfxV9wyJEShWesqhE/TjdqpMA==
   dependencies:
     "@ethersproject/abi" "5.4.0"
@@ -3699,12 +3910,12 @@ fs.realpath@^1.0.0:
 
 fsevents@~2.1.1:
   version "2.1.3"
-  resolved "https://registry.npmjs.org/fsevents/-/fsevents-2.1.3.tgz"
+  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-2.1.3.tgz#fb738703ae8d2f9fe900c33836ddebee8b97f23e"
   integrity sha512-Auw9a4AxqWpa9GUfj370BMPzzyncfBABW8Mab7BGWBYDj4Isgq+cDKtx0i6u9jcX9pQDnswsaaOTgTmA5pEjuQ==
 
 fsevents@~2.3.2:
   version "2.3.2"
-  resolved "https://registry.npmjs.org/fsevents/-/fsevents-2.3.2.tgz"
+  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-2.3.2.tgz#8a526f78b8fdf4623b709e0b975c52c24c02fd1a"
   integrity sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==
 
 function-bind@^1.1.1:
@@ -3797,6 +4008,14 @@ get-stream@^5.1.0:
   dependencies:
     pump "^3.0.0"
 
+get-symbol-description@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/get-symbol-description/-/get-symbol-description-1.0.0.tgz#7fdb81c900101fbd564dd5f1a30af5aadc1e58d6"
+  integrity sha512-2EmdH1YvIQiZpltCNgkuiUnyukzxM/R6NDJX31Ke3BG1Nq5b0S2PhX59UKi9vZpPDQVdqn+1IcaAwnzTT5vCjw==
+  dependencies:
+    call-bind "^1.0.2"
+    get-intrinsic "^1.1.1"
+
 get-value@^2.0.3, get-value@^2.0.6:
   version "2.0.6"
   resolved "https://registry.npmjs.org/get-value/-/get-value-2.0.6.tgz"
@@ -3915,7 +4134,7 @@ har-validator@~5.1.3:
 
 hardhat@2.6.1:
   version "2.6.1"
-  resolved "https://registry.yarnpkg.com/hardhat/-/hardhat-2.6.1.tgz#4553ca555c1ba8ed7c3c5a5a93e6082a2869b3ae"
+  resolved "https://registry.npmjs.org/hardhat/-/hardhat-2.6.1.tgz"
   integrity sha512-0LozdYbPsiTc6ZXsfDQUTV3L0p4CMO5TRbd5qmeWiCYGmhd+7Mvdg4N+nA8w0g3gZ2OKFUmHIYlAbExI488ceQ==
   dependencies:
     "@ethereumjs/block" "^3.4.0"
@@ -4303,7 +4522,7 @@ is-buffer@~2.0.3:
   resolved "https://registry.npmjs.org/is-buffer/-/is-buffer-2.0.5.tgz"
   integrity sha512-i2R6zNFDwgEHJyQUtJEk0XFi1i0dPFn/oqjK3/vPCcDeJvW5NQ83V8QbicfF1SupOaB0h8ntgBC2YiE7dfyctQ==
 
-is-callable@^1.1.3, is-callable@^1.1.4, is-callable@^1.2.3:
+is-callable@^1.1.3, is-callable@^1.1.4, is-callable@^1.2.3, is-callable@^1.2.4:
   version "1.2.4"
   resolved "https://registry.npmjs.org/is-callable/-/is-callable-1.2.4.tgz"
   integrity sha512-nsuwtxZfMX67Oryl9LCQ+upnC0Z0BgpwntpS89m1H/TLF0zNfzfLMV/9Wa/6MZsj0acpEjAO0KF1xT6ZdLl95w==
@@ -4316,9 +4535,9 @@ is-ci@^2.0.0:
     ci-info "^2.0.0"
 
 is-core-module@^2.2.0:
-  version "2.6.0"
-  resolved "https://registry.yarnpkg.com/is-core-module/-/is-core-module-2.6.0.tgz#d7553b2526fe59b92ba3e40c8df757ec8a709e19"
-  integrity sha512-wShG8vs60jKfPWpF2KZRaAtvt3a20OAn7+IJ6hLPECpSABLcKtFKTTI4ZtH5QcBruBHlq+WsdHWyz0BCZW7svQ==
+  version "2.8.0"
+  resolved "https://registry.yarnpkg.com/is-core-module/-/is-core-module-2.8.0.tgz#0321336c3d0925e497fd97f5d95cb114a5ccd548"
+  integrity sha512-vd15qHsaqrRL7dtH6QNuy0ndJmRDrS9HAM1CAiSifNUFv4x1a0CCVsj18hJ1mShxIG6T2i1sO78MkP56r0nYRw==
   dependencies:
     has "^1.0.3"
 
@@ -4431,7 +4650,7 @@ is-hex-prefixed@1.0.0:
 
 is-nan@^1.2.1:
   version "1.3.2"
-  resolved "https://registry.yarnpkg.com/is-nan/-/is-nan-1.3.2.tgz#043a54adea31748b55b6cd4e09aadafa69bd9e1d"
+  resolved "https://registry.npmjs.org/is-nan/-/is-nan-1.3.2.tgz"
   integrity sha512-E+zBKpQ2t6MEo1VsonYmluk9NxGrbzpeeLC2xIViuO2EjU2xsXsBPwTr3Ykv9l08UYEVEdWeRZNouaZqF6RN0w==
   dependencies:
     call-bind "^1.0.0"
@@ -4478,7 +4697,7 @@ is-plain-object@^2.0.3, is-plain-object@^2.0.4:
   dependencies:
     isobject "^3.0.1"
 
-is-regex@^1.0.4, is-regex@^1.1.3, is-regex@~1.1.3:
+is-regex@^1.0.4, is-regex@^1.1.3, is-regex@^1.1.4, is-regex@~1.1.3:
   version "1.1.4"
   resolved "https://registry.npmjs.org/is-regex/-/is-regex-1.1.4.tgz"
   integrity sha512-kvRdxDsxZjhzUX07ZnLydzS1TU/TJlTUHHY4YLL87e37oUA49DfkLqgy+VjFocowy29cKvcSiu+kIv728jTTVg==
@@ -4491,12 +4710,17 @@ is-retry-allowed@^1.0.0:
   resolved "https://registry.npmjs.org/is-retry-allowed/-/is-retry-allowed-1.2.0.tgz"
   integrity sha512-RUbUeKwvm3XG2VYamhJL1xFktgjvPzL0Hq8C+6yrWIswDy3BIXGqCxhxkc30N9jqK311gVU137K8Ei55/zVJRg==
 
+is-shared-array-buffer@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-shared-array-buffer/-/is-shared-array-buffer-1.0.1.tgz#97b0c85fbdacb59c9c446fe653b82cf2b5b7cfe6"
+  integrity sha512-IU0NmyknYZN0rChcKhRO1X8LYz5Isj/Fsqh8NJOSf+N/hCOTwy29F32Ik7a+QszE63IdvmwdTPDd6cZ5pg4cwA==
+
 is-stream@^1.0.0, is-stream@^1.0.1:
   version "1.1.0"
   resolved "https://registry.npmjs.org/is-stream/-/is-stream-1.1.0.tgz"
   integrity sha1-EtSj3U5o4Lec6428hBc66A2RykQ=
 
-is-string@^1.0.5, is-string@^1.0.6:
+is-string@^1.0.5, is-string@^1.0.6, is-string@^1.0.7:
   version "1.0.7"
   resolved "https://registry.npmjs.org/is-string/-/is-string-1.0.7.tgz"
   integrity sha512-tE2UXzivje6ofPW7l23cjDOMa09gb7xlAqG6jG5ej6uPV32TlWP3NKPigtaGeHNu9fohccRYvIiZMfOOnOYUtg==
@@ -4536,6 +4760,13 @@ is-utf8@^0.2.0:
   resolved "https://registry.npmjs.org/is-utf8/-/is-utf8-0.2.1.tgz"
   integrity sha1-Sw2hRCEE0bM2NA6AeX6GXPOffXI=
 
+is-weakref@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-weakref/-/is-weakref-1.0.1.tgz#842dba4ec17fa9ac9850df2d6efbc1737274f2a2"
+  integrity sha512-b2jKc2pQZjaeFYWEf7ScFj+Be1I+PXmlu572Q8coTXZ+LD/QQZ7ShPMst8h16riVgyXTQwUsFEl74mDvc/3MHQ==
+  dependencies:
+    call-bind "^1.0.0"
+
 is-windows@^1.0.2:
   version "1.0.2"
   resolved "https://registry.npmjs.org/is-windows/-/is-windows-1.0.2.tgz"
@@ -4577,7 +4808,7 @@ isobject@^3.0.0, isobject@^3.0.1:
 
 isomorphic-ws@4.0.1:
   version "4.0.1"
-  resolved "https://registry.yarnpkg.com/isomorphic-ws/-/isomorphic-ws-4.0.1.tgz#55fd4cd6c5e6491e76dc125938dd863f5cd4f2dc"
+  resolved "https://registry.npmjs.org/isomorphic-ws/-/isomorphic-ws-4.0.1.tgz"
   integrity sha512-BhBvN2MBpWTaSHdWRb/bwdZJ1WaehQ2L1KngkCkfLUGF0mAWAT1sQUQacEmQ0jXkFw/czDXPNQSL5u2/Krsz1w==
 
 isstream@~0.1.2:
@@ -5498,6 +5729,11 @@ node-gyp-build@^4.2.0:
   resolved "https://registry.npmjs.org/node-gyp-build/-/node-gyp-build-4.2.3.tgz"
   integrity sha512-MN6ZpzmfNCRM+3t57PTJHgHyw/h4OWnZ6mR8P5j/uZtqQr46RRuDE/P+g3n0YR/AiYXeWixZZzaip77gdICfRg==
 
+nofilter@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.npmjs.org/nofilter/-/nofilter-1.0.4.tgz"
+  integrity sha512-N8lidFp+fCz+TD51+haYdbDGrcBWwuHX40F5+z0qkUjMJ5Tp+rdSuAkMJ9N9eoolDlEVTf6u5icM+cNKkKW2mA==
+
 normalize-package-data@^2.3.2:
   version "2.5.0"
   resolved "https://registry.npmjs.org/normalize-package-data/-/normalize-package-data-2.5.0.tgz"
@@ -5550,14 +5786,19 @@ object-copy@^0.1.0:
     define-property "^0.2.5"
     kind-of "^3.0.3"
 
-object-inspect@^1.11.0, object-inspect@^1.9.0, object-inspect@~1.11.0:
+object-inspect@^1.11.0, object-inspect@^1.9.0:
   version "1.11.0"
   resolved "https://registry.npmjs.org/object-inspect/-/object-inspect-1.11.0.tgz"
   integrity sha512-jp7ikS6Sd3GxQfZJPyH3cjcbJF6GZPClgdV+EFygjFLQ5FmW/dRUnTd9PQ9k0JhoNDabWFbpF1yCdSWCC6gexg==
 
+object-inspect@~1.11.0:
+  version "1.11.1"
+  resolved "https://registry.yarnpkg.com/object-inspect/-/object-inspect-1.11.1.tgz#d4bd7d7de54b9a75599f59a00bd698c1f1c6549b"
+  integrity sha512-If7BjFlpkzzBeV1cqgT3OSWT3azyoxDGajR+iGnFBfVV2EWyDyWaZZW2ERDjUaY2QM8i5jI3Sj7mhsM4DDAqWA==
+
 object-is@^1.0.1:
   version "1.1.5"
-  resolved "https://registry.yarnpkg.com/object-is/-/object-is-1.1.5.tgz#b9deeaa5fc7f1846a0faecdceec138e5778f53ac"
+  resolved "https://registry.npmjs.org/object-is/-/object-is-1.1.5.tgz"
   integrity sha512-3cyDsyHgtmi7I7DfSSI2LDp6SK2lwvtbg0p0R1e0RvTqF5ceGx+K2dfSjm1bKDMVCFEDAQvy+o8c6a7VujOddw==
   dependencies:
     call-bind "^1.0.2"
@@ -6798,7 +7039,7 @@ store2@2.11.0:
 
 stream-browserify@3.0.0:
   version "3.0.0"
-  resolved "https://registry.yarnpkg.com/stream-browserify/-/stream-browserify-3.0.0.tgz#22b0a2850cdf6503e73085da1fc7b7d0c2122f2f"
+  resolved "https://registry.npmjs.org/stream-browserify/-/stream-browserify-3.0.0.tgz"
   integrity sha512-H73RAHsVBapbim0tU2JwwOiXUj+fikfiaoYAKHF3VJfA0pe2BCzkhAHBlLG6REzE+2WNZcxOXjK7lkso+9euLA==
   dependencies:
     inherits "~2.0.4"
@@ -6844,13 +7085,13 @@ string-width@^3.0.0, string-width@^3.1.0:
     strip-ansi "^5.1.0"
 
 string.prototype.trim@~1.2.4:
-  version "1.2.4"
-  resolved "https://registry.yarnpkg.com/string.prototype.trim/-/string.prototype.trim-1.2.4.tgz#6014689baf5efaf106ad031a5fa45157666ed1bd"
-  integrity sha512-hWCk/iqf7lp0/AgTF7/ddO1IWtSNPASjlzCicV5irAVdE1grjsneK26YG6xACMBEdCvO8fUST0UzDMh/2Qy+9Q==
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/string.prototype.trim/-/string.prototype.trim-1.2.5.tgz#a587bcc8bfad8cb9829a577f5de30dd170c1682c"
+  integrity sha512-Lnh17webJVsD6ECeovpVN17RlAKjmz4rF9S+8Y45CkMc/ufVpTkU3vZIyIC7sllQ1FCvObZnnCdNs/HXTUOTlg==
   dependencies:
     call-bind "^1.0.2"
     define-properties "^1.1.3"
-    es-abstract "^1.18.0-next.2"
+    es-abstract "^1.19.1"
 
 string.prototype.trimend@^1.0.4:
   version "1.0.4"
@@ -7134,7 +7375,7 @@ ts-generator@^0.1.1:
 
 ts-node@^10.2.1:
   version "10.2.1"
-  resolved "https://registry.yarnpkg.com/ts-node/-/ts-node-10.2.1.tgz#4cc93bea0a7aba2179497e65bb08ddfc198b3ab5"
+  resolved "https://registry.npmjs.org/ts-node/-/ts-node-10.2.1.tgz"
   integrity sha512-hCnyOyuGmD5wHleOQX6NIjJtYVIO8bPP8F2acWkB4W06wdlkgyvJtubO/I9NkI88hCFECbsEgoLc0VNkYmcSfw==
   dependencies:
     "@cspotcode/source-map-support" "0.6.1"
@@ -7242,7 +7483,7 @@ typedarray@^0.0.6:
 
 typescript@^4.3.4, typescript@^4.3.5:
   version "4.3.5"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.3.5.tgz#4d1c37cc16e893973c45a06886b7113234f119f4"
+  resolved "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz"
   integrity sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==
 
 typewise-core@^1.2, typewise-core@^1.2.0:
@@ -7934,7 +8175,7 @@ web3@1.2.11:
 
 web3@^1.5.2:
   version "1.5.2"
-  resolved "https://registry.yarnpkg.com/web3/-/web3-1.5.2.tgz#736ca2f39048c63964203dd811f519400973e78d"
+  resolved "https://registry.npmjs.org/web3/-/web3-1.5.2.tgz"
   integrity sha512-aapKLdO8t7Cos6tZLeeQUtCJvTiPMlLcHsHHDLSBZ/VaJEucSTxzun32M8sp3BmF4waDEmhY+iyUM1BKvtAcVQ==
   dependencies:
     web3-bzz "1.5.2"
@@ -8048,7 +8289,7 @@ wrappy@1:
   resolved "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz"
   integrity sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=
 
-ws@7.4.6:
+ws@7.4.6, ws@^7.4.6:
   version "7.4.6"
   resolved "https://registry.npmjs.org/ws/-/ws-7.4.6.tgz"
   integrity sha512-YmhHDO4MzaDLB+M9ym/mDA5z0naX8j7SIlT8f8z+I0VtzsRbekxEutHSme7NPS2qE8StCYQNUnfWdXta/Yu85A==
@@ -8069,11 +8310,6 @@ ws@^5.1.1:
   dependencies:
     async-limiter "~1.0.0"
 
-ws@^7.4.6:
-  version "7.5.3"
-  resolved "https://registry.npmjs.org/ws/-/ws-7.5.3.tgz"
-  integrity sha512-kQ/dHIzuLrS6Je9+uv81ueZomEwH0qVYstcAQ4/Z93K8zeko9gtAbttJWzoC5ukqXY1PpoouV3+VSOqEAFt5wg==
-
 xhr-request-promise@^0.1.2:
   version "0.1.3"
   resolved "https://registry.npmjs.org/xhr-request-promise/-/xhr-request-promise-0.1.3.tgz"