diff --git a/package-lock.json b/package-lock.json
index f8caf28..e402d3e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2688,6 +2688,15 @@
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       "dev": true
     },
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+      "resolved": "https://registry.npmjs.org/bufferutil/-/bufferutil-4.0.6.tgz",
+      "integrity": "sha512-jduaYOYtnio4aIAyc6UbvPCVcgq7nYpVnucyxr6eCYg/Woad9Hf/oxxBRDnGGjPfjUm6j5O/uBWhIu4iLebFaw==",
+      "dev": true,
+      "requires": {
+        "node-gyp-build": "^4.3.0"
+      }
+    },
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       "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.0.tgz",
@@ -4556,6 +4565,15 @@
             "lodash": "^4.17.14"
           }
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+        "async-eventemitter": {
+          "version": "0.2.4",
+          "resolved": "https://registry.npmjs.org/async-eventemitter/-/async-eventemitter-0.2.4.tgz",
+          "integrity": "sha512-pd20BwL7Yt1zwDFy+8MX8F1+WCT8aQeKj0kQnTrH9WaeRETlRamVhD0JtRPmrV4GfOJ2F9CvdQkZeZhnh2TuHw==",
+          "dev": true,
+          "requires": {
+            "async": "^2.4.0"
+          }
+        },
         "ethereumjs-block": {
           "version": "2.2.2",
           "resolved": "https://registry.npmjs.org/ethereumjs-block/-/ethereumjs-block-2.2.2.tgz",
@@ -8035,6 +8053,12 @@
         "is-stream": "^1.0.1"
       }
     },
+    "node-gyp-build": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/node-gyp-build/-/node-gyp-build-4.3.0.tgz",
+      "integrity": "sha512-iWjXZvmboq0ja1pUGULQBexmxq8CV4xBhX7VDOTbL7ZR4FOowwY/VOtRxBN/yKxmdGoIp4j5ysNT4u3S2pDQ3Q==",
+      "dev": true
+    },
     "nopt": {
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       "resolved": "https://registry.npmjs.org/nopt/-/nopt-3.0.6.tgz",
@@ -9443,9 +9467,9 @@
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-      "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.8.4.tgz",
-      "integrity": "sha512-7gk3UZ9kOfPLIAbslLzyWeGiEqx9e3rxwZM0KE6EL8GlGwjym9Mrlx5/p33bWTu9YG6vcS4MBxYZDHYr5lr8BQ==",
+      "version": "0.8.5",
+      "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.8.5.tgz",
+      "integrity": "sha512-TiwcRcrkhHvbrZbnRcFYMLl30Dfov3HKqzp5tO5b4pt6G/SezKcYhmDg15zXVBswHmctSAQKznqNW2LO5tTDow==",
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@@ -11651,6 +11675,21 @@
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           "dev": true
         },
+        "debug": {
+          "version": "2.6.9",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+          "dev": true,
+          "requires": {
+            "ms": "2.0.0"
+          }
+        },
+        "ms": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
+          "dev": true
+        },
         "web3": {
           "version": "1.2.1",
           "resolved": "https://registry.npmjs.org/web3/-/web3-1.2.1.tgz",
@@ -11680,6 +11719,20 @@
             "underscore": "1.9.1",
             "utf8": "3.0.0"
           }
+        },
+        "websocket": {
+          "version": "1.0.34",
+          "resolved": "https://registry.npmjs.org/websocket/-/websocket-1.0.34.tgz",
+          "integrity": "sha512-PRDso2sGwF6kM75QykIesBijKSVceR6jL2G8NGYyq2XrItNC2P5/qL5XeR056GhA+Ly7JMFvJb9I312mJfmqnQ==",
+          "dev": true,
+          "requires": {
+            "bufferutil": "^4.0.1",
+            "debug": "^2.2.0",
+            "es5-ext": "^0.10.50",
+            "typedarray-to-buffer": "^3.1.5",
+            "utf-8-validate": "^5.0.2",
+            "yaeti": "^0.0.6"
+          }
         }
       }
     },
@@ -11926,6 +11979,15 @@
       "integrity": "sha1-FQWgOiiaSMvXpDTvuu7FBV9WM6k=",
       "dev": true
     },
+    "utf-8-validate": {
+      "version": "5.0.8",
+      "resolved": "https://registry.npmjs.org/utf-8-validate/-/utf-8-validate-5.0.8.tgz",
+      "integrity": "sha512-k4dW/Qja1BYDl2qD4tOMB9PFVha/UJtxTc1cXYOe3WwA/2m0Yn4qB7wLMpJyLJ/7DR0XnTut3HsCSzDT4ZvKgA==",
+      "dev": true,
+      "requires": {
+        "node-gyp-build": "^4.3.0"
+      }
+    },
     "utf8": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/utf8/-/utf8-3.0.0.tgz",