diff --git a/yarn.lock b/yarn.lock
index 2a32962..4885f51 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -134,6 +134,11 @@ base64-js@^1.0.2:
   resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.3.1.tgz#58ece8cb75dd07e71ed08c736abc5fac4dbf8df1"
   integrity sha512-mLQ4i2QO1ytvGWFWmcngKO//JXAQueZvwEKtjgQFM4jIK0kU+ytMfplL8j+n5mspOfjHwoAg+9yhb7BwAHm36g==
 
+base64-js@^1.3.1:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.5.1.tgz#1b1b440160a5bf7ad40b650f095963481903930a"
+  integrity sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==
+
 bcrypt-pbkdf@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz#a4301d389b6a43f9b67ff3ca11a3f6637e360e9e"
@@ -141,10 +146,10 @@ bcrypt-pbkdf@^1.0.0:
   dependencies:
     tweetnacl "^0.14.3"
 
-bignumber.js@9.0.0:
-  version "9.0.0"
-  resolved "https://registry.yarnpkg.com/bignumber.js/-/bignumber.js-9.0.0.tgz#805880f84a329b5eac6e7cb6f8274b6d82bdf075"
-  integrity sha512-t/OYhhJ2SD+YGBQcjY8GzzDHEk9f3nerxjtfa6tlMXfe7frs/WozhvCNoGvpM0P3bNf3Gq5ZRMlGr5f3r4/N8A==
+bignumber.js@^9.0.0:
+  version "9.0.1"
+  resolved "https://registry.yarnpkg.com/bignumber.js/-/bignumber.js-9.0.1.tgz#8d7ba124c882bfd8e43260c67475518d0689e4e5"
+  integrity sha512-IdZR9mh6ahOBv/hYGiXyVuyCetmGJhtYkqLBpTStdhEGjegpPlUawydyaF3pbIOFynJTpllEs+NP+CS9jKFLjA==
 
 bindings@^1.5.0:
   version "1.5.0"
@@ -289,7 +294,15 @@ buffer-xor@^1.0.3:
   resolved "https://registry.yarnpkg.com/buffer-xor/-/buffer-xor-1.0.3.tgz#26e61ed1422fb70dd42e6e36729ed51d855fe8d9"
   integrity sha1-JuYe0UIvtw3ULm42cp7VHYVf6Nk=
 
-buffer@5.4.3, buffer@^5.0.5, buffer@^5.2.1:
+buffer@6.0.3:
+  version "6.0.3"
+  resolved "https://registry.yarnpkg.com/buffer/-/buffer-6.0.3.tgz#2ace578459cc8fbe2a70aaa8f52ee63b6a74c6c6"
+  integrity sha512-FTiCpNxtwiZZHEZbcbTIcZjERVICn9yq/pDFkTl95/AxzD1naBctN7YO68riM/gLSDY7sdrMby8hofADYuuqOA==
+  dependencies:
+    base64-js "^1.3.1"
+    ieee754 "^1.2.1"
+
+buffer@^5.0.5, buffer@^5.2.1:
   version "5.4.3"
   resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.4.3.tgz#3fbc9c69eb713d323e3fc1a895eee0710c072115"
   integrity sha512-zvj65TkFeIt3i6aj5bIvJDzjjQQGs4o/sNoezg1F1kYap9Nu2jcUdpwzRSJTHMMzG0H7bZkn4rNQpImhuxWX2A==
@@ -686,7 +699,7 @@ eth-lib@0.2.7:
     elliptic "^6.4.0"
     xhr-request-promise "^0.1.2"
 
-eth-lib@^0.1.26:
+eth-lib@^0.1.26, eth-lib@^0.1.29:
   version "0.1.29"
   resolved "https://registry.yarnpkg.com/eth-lib/-/eth-lib-0.1.29.tgz#0c11f5060d42da9f931eab6199084734f4dbd1d9"
   integrity sha512-bfttrr3/7gG4E02HoWTDUcDDslN003OlOoBxk9virpAZQ1ja/jDgwkWB8QfJF7ojuEowrqy+lzp9VcJG7/k5bQ==
@@ -1145,6 +1158,11 @@ ieee754@^1.1.4:
   resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.1.13.tgz#ec168558e95aa181fd87d37f55c32bbcb6708b84"
   integrity sha512-4vf7I2LYV/HaWerSo3XmlMkp5eZ83i+/CDluXi/IGTs/O1sejBNhTtnxzmRZfvOUqj7lZjqHkeTvpgSFDlWZTg==
 
+ieee754@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.2.1.tgz#8eb7a10a63fff25d15a57b001586d177d1b0d352"
+  integrity sha512-dcyqhDvX1C46lXZcVqCpK+FtMRQVdIMN6/Df5js2zouUsqG7I6sFxitIC+7KYK29KdXOLHdu9zL4sFnoVQnqaA==
+
 inherits@2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
@@ -1450,9 +1468,9 @@ next-tick@~1.0.0:
   integrity sha1-yobR/ogoFpsBICCOPchCS524NCw=
 
 normalize-url@^4.1.0:
-  version "4.5.0"
-  resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-4.5.0.tgz#453354087e6ca96957bd8f5baf753f5982142129"
-  integrity sha512-2s47yzUxdexf1OhyRi4Em83iQk0aPvwTddtFz4hnSSw9dCEsLEGf6SwIO8ss/19S9iBb5sJaOuTvTGDeZI00BQ==
+  version "4.5.1"
+  resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-4.5.1.tgz#0dd90cf1288ee1d1313b87081c9a5932ee48518a"
+  integrity sha512-9UZCFRHQdNrfTpGg8+1INIg93B6zE0aXMVFkw1WFwvO4SlZywU6aLg5Of0Ap/PgcbSw4LNxvMWXMeugwMCX0AA==
 
 number-to-bn@1.7.0:
   version "1.7.0"
@@ -1872,12 +1890,12 @@ sha.js@^2.4.0, sha.js@^2.4.8:
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
 
-sha3@2.1.1:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/sha3/-/sha3-2.1.1.tgz#488c0f978a73ea540cc4f4a2235a77aed095c031"
-  integrity sha512-hj6dCLbWByenZarg2gb2VFD9zoY5kr/FMriDcbtVDLJ5geOWGOJCI0jQUjAzoY/ZHlkt8BSEbh9KJEDT8AGuJQ==
+sha3@^2.1.1:
+  version "2.1.4"
+  resolved "https://registry.yarnpkg.com/sha3/-/sha3-2.1.4.tgz#000fac0fe7c2feac1f48a25e7a31b52a6492cc8f"
+  integrity sha512-S8cNxbyb0UGUM2VhRD4Poe5N58gJnJsLJ5vC7FYWGUmGhcsj4++WaIOBFVDxlG0W3To6xBuiRh+i0Qp2oNCOtg==
   dependencies:
-    buffer "5.4.3"
+    buffer "6.0.3"
 
 simple-concat@^1.0.0:
   version "1.0.0"