diff --git a/package-lock.json b/package-lock.json
index e36db01..71f63de 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -64,6 +64,24 @@
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@@ -996,6 +1014,12 @@
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@@ -1143,6 +1167,26 @@
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+      "resolved": "https://registry.npmjs.org/bs58/-/bs58-4.0.1.tgz",
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+      "resolved": "https://registry.npmjs.org/bs58check/-/bs58check-2.1.2.tgz",
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+      "resolved": "https://registry.npmjs.org/call-bind/-/call-bind-1.0.2.tgz",
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+      "requires": {
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@@ -1377,14 +1430,6 @@
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@@ -1707,11 +1747,6 @@
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@@ -2022,6 +2057,63 @@
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+          "dev": true,
+          "requires": {
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+            "brorand": "^1.1.0",
+            "hash.js": "^1.0.0",
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+              "dev": true
+            }
+          }
+        },
+        "ethereumjs-abi": {
+          "version": "git+https://github.com/ethereumjs/ethereumjs-abi.git#8431eab7b3384e65e8126a4602520b78031666fb",
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+                "bn.js": "^4.11.0",
+                "create-hash": "^1.1.2",
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+                "ethjs-util": "0.1.6",
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+          "dev": true
+        }
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     },
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@@ -2048,28 +2140,95 @@
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+      "resolved": "https://registry.npmjs.org/ethereum-cryptography/-/ethereum-cryptography-0.1.3.tgz",
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-        "ethereumjs-util": "^6.0.0"
+        "@types/pbkdf2": "^3.0.0",
+        "@types/secp256k1": "^4.0.1",
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+          "resolved": "https://registry.npmjs.org/secp256k1/-/secp256k1-4.0.3.tgz",
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+            "nan": "^2.3.3",
+            "typedarray-to-buffer": "^3.1.2",
+            "yaeti": "^0.0.6"
+          }
+        }
       }
     },
     "web3-shh": {
@@ -5619,26 +5953,6 @@
         }
       }
     },
-    "websocket": {
-      "version": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
-      "from": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible",
-      "requires": {
-        "debug": "^2.2.0",
-        "nan": "^2.3.3",
-        "typedarray-to-buffer": "^3.1.2",
-        "yaeti": "^0.0.6"
-      },
-      "dependencies": {
-        "debug": {
-          "version": "2.6.9",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
-          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
-          "requires": {
-            "ms": "2.0.0"
-          }
-        }
-      }
-    },
     "whatwg-fetch": {
       "version": "2.0.4",
       "resolved": "https://registry.npmjs.org/whatwg-fetch/-/whatwg-fetch-2.0.4.tgz",