diff --git a/package-lock.json b/package-lock.json
index 75161fc..7fb8fe8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3083,18 +3083,32 @@
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     },
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-      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.4.1.tgz",
-      "integrity": "sha512-BsXLz5sqX8OHcsh7CqBMztyXARmGQ3LWPtGjJi6DiJHq5C/qvi9P3OqgswKSDftbu8+IoI/QDTAm2fFnQ9SZSQ==",
+      "version": "6.5.4",
+      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.4.tgz",
+      "integrity": "sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==",
       "dev": true,
       "requires": {
-        "bn.js": "^4.4.0",
-        "brorand": "^1.0.1",
+        "bn.js": "^4.11.9",
+        "brorand": "^1.1.0",
         "hash.js": "^1.0.0",
-        "hmac-drbg": "^1.0.0",
-        "inherits": "^2.0.1",
-        "minimalistic-assert": "^1.0.0",
-        "minimalistic-crypto-utils": "^1.0.0"
+        "hmac-drbg": "^1.0.1",
+        "inherits": "^2.0.4",
+        "minimalistic-assert": "^1.0.1",
+        "minimalistic-crypto-utils": "^1.0.1"
+      },
+      "dependencies": {
+        "bn.js": {
+          "version": "4.12.0",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.12.0.tgz",
+          "integrity": "sha512-c98Bf3tPniI+scsdk237ku1Dc3ujXQTSgyiPUDEOe7tRkhrqridvh8klBv0HCEso1OLOYcHuCv/cS6DNxKH+ZA==",
+          "dev": true
+        },
+        "inherits": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
+          "dev": true
+        }
       }
     },
     "emoji-regex": {
@@ -5280,6 +5294,12 @@
       "integrity": "sha1-8w9xbI4r00bHtn0985FVZqfAVgc=",
       "dev": true
     },
+    "indexof": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/indexof/-/indexof-0.0.1.tgz",
+      "integrity": "sha1-gtwzbSMrkGIXnQWrMpOmYFn9Q10=",
+      "dev": true
+    },
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       "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
@@ -6976,41 +6996,44 @@
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         "crypto-browserify": "^3.11.0",
         "domain-browser": "^1.1.1",
-        "events": "^3.0.0",
+        "events": "^1.0.0",
         "https-browserify": "^1.0.0",
         "os-browserify": "^0.3.0",
-        "path-browserify": "0.0.1",
-        "process": "^0.11.10",
+        "path-browserify": "0.0.0",
+        "process": "^0.11.0",
         "punycode": "^1.2.4",
         "querystring-es3": "^0.2.0",
-        "readable-stream": "^2.3.3",
+        "readable-stream": "^2.0.5",
         "stream-browserify": "^2.0.1",
-        "stream-http": "^2.7.2",
+        "stream-http": "^2.3.1",
         "string_decoder": "^1.0.0",
-        "timers-browserify": "^2.0.4",
+        "timers-browserify": "^2.0.2",
         "tty-browserify": "0.0.0",
         "url": "^0.11.0",
         "util": "^0.11.0",
-        "vm-browserify": "^1.0.1"
+        "vm-browserify": "0.0.4"
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       "dependencies": {
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-          "version": "3.2.0",
-          "resolved": "https://registry.npmjs.org/events/-/events-3.2.0.tgz",
-          "integrity": "sha512-/46HWwbfCX2xTawVfkKLGxMifJYQBWMwY1mjywRtb4c9x8l5NP3KoJtnIOiL1hfdRkIuYhETxQlo62IF8tcnlg==",
+          "version": "1.1.1",
+          "resolved": "https://registry.npmjs.org/events/-/events-1.1.1.tgz",
+          "integrity": "sha1-nr23Y1rQmccNzEwqH1AEKI6L2SQ=",
           "dev": true
         },
         "path-browserify": {
-          "version": "0.0.1",
-          "resolved": "https://registry.npmjs.org/path-browserify/-/path-browserify-0.0.1.tgz",
-          "integrity": "sha512-BapA40NHICOS+USX9SN4tyhq+A2RrN/Ws5F0Z5aMHDp98Fl86lX8Oti8B7uN93L4Ifv4fHOEA+pQw87gmMO/lQ==",
+          "version": "0.0.0",
+          "resolved": "https://registry.npmjs.org/path-browserify/-/path-browserify-0.0.0.tgz",
+          "integrity": "sha1-oLhwcpquIUAFt9UDLsLLuw+0RRo=",
           "dev": true
         },
         "vm-browserify": {
-          "version": "1.1.2",
-          "resolved": "https://registry.npmjs.org/vm-browserify/-/vm-browserify-1.1.2.tgz",
-          "integrity": "sha512-2ham8XPWTONajOR0ohOKOHXkm3+gaBmGut3SRuu75xLd/RRaY6vqgh8NBYYk7+RW3u5AtzPQZG8F10LHkl0lAQ==",
-          "dev": true
+          "version": "0.0.4",
+          "resolved": "https://registry.npmjs.org/vm-browserify/-/vm-browserify-0.0.4.tgz",
+          "integrity": "sha1-XX6kW7755Kb/ZflUOOCofDV9WnM=",
+          "dev": true,
+          "requires": {
+            "indexof": "0.0.1"
+          }
         }
       }
     },
@@ -9624,7 +9647,7 @@
         },
         "readable-stream": {
           "version": "2.3.6",
-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
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           "dev": true,
           "requires": {