diff --git a/integration-tests/package-lock.json b/integration-tests/package-lock.json
index c27114a..7477afc 100644
--- a/integration-tests/package-lock.json
+++ b/integration-tests/package-lock.json
@@ -759,6 +759,11 @@
         "assert-plus": "^1.0.0"
       }
     },
+    "data-uri-to-buffer": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/data-uri-to-buffer/-/data-uri-to-buffer-4.0.0.tgz",
+      "integrity": "sha512-Vr3mLBA8qWmcuschSLAOogKgQ/Jwxulv3RNE4FXnYWRGujzrRWQI4m12fQqRkwX06C0KanhLr4hK+GydchZsaA=="
+    },
     "debug": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
@@ -1370,6 +1375,15 @@
         "pend": "~1.2.0"
       }
     },
+    "fetch-blob": {
+      "version": "3.1.4",
+      "resolved": "https://registry.npmjs.org/fetch-blob/-/fetch-blob-3.1.4.tgz",
+      "integrity": "sha512-Eq5Xv5+VlSrYWEqKrusxY1C3Hm/hjeAsCGVG3ft7pZahlUAChpGZT/Ms1WmSLnEAisEXszjzu/s+ce6HZB2VHA==",
+      "requires": {
+        "node-domexception": "^1.0.0",
+        "web-streams-polyfill": "^3.0.3"
+      }
+    },
     "file-type": {
       "version": "5.2.0",
       "resolved": "https://registry.npmjs.org/file-type/-/file-type-5.2.0.tgz",
@@ -1451,6 +1465,14 @@
         "mime-types": "^2.1.12"
       }
     },
+    "formdata-polyfill": {
+      "version": "4.0.10",
+      "resolved": "https://registry.npmjs.org/formdata-polyfill/-/formdata-polyfill-4.0.10.tgz",
+      "integrity": "sha512-buewHzMvYL29jdeQTVILecSaZKnt/RJWjoZCF5OW60Z67/GmSLBkOFM7qh1PI3zFNtJbaZL5eQu1vLfazOwj4g==",
+      "requires": {
+        "fetch-blob": "^3.1.2"
+      }
+    },
     "forwarded": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.1.2.tgz",
@@ -2644,6 +2666,11 @@
       "resolved": "https://registry.npmjs.org/nice-try/-/nice-try-1.0.5.tgz",
       "integrity": "sha512-1nh45deeb5olNY7eX82BkPO7SSxR5SSYJiPTrTdFUVYwAl8CKMA5N9PjTYkHiRjisVcxcQ1HXdLhx2qxxJzLNQ=="
     },
+    "node-domexception": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/node-domexception/-/node-domexception-1.0.0.tgz",
+      "integrity": "sha512-/jKZoMpw0F8GRwl4/eLROPA3cfcXtLApP0QzLmUT/HuPCZWyB7IY9ZrMeKw2O/nFIqPQB3PVM9aYm0F312AXDQ=="
+    },
     "node-environment-flags": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/node-environment-flags/-/node-environment-flags-1.0.5.tgz",
@@ -2654,9 +2681,14 @@
       }
     },
     "node-fetch": {
-      "version": "2.6.0",
-      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.0.tgz",
-      "integrity": "sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA=="
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-3.1.1.tgz",
+      "integrity": "sha512-SMk+vKgU77PYotRdWzqZGTZeuFKlsJ0hu4KPviQKkfY+N3vn2MIzr0rvpnYpR8MtB3IEuhlEcuOLbGvLRlA+yg==",
+      "requires": {
+        "data-uri-to-buffer": "^4.0.0",
+        "fetch-blob": "^3.1.3",
+        "formdata-polyfill": "^4.0.10"
+      }
     },
     "normalize-package-data": {
       "version": "2.5.0",
@@ -4567,7 +4599,7 @@
           "dependencies": {
             "websocket": {
               "version": "github:web3-js/WebSocket-Node#905deb4812572b344f5801f8c9ce8bb02799d82e",
-              "from": "github:web3-js/WebSocket-Node#polyfill/globalThis",
+              "from": "github:web3-js/WebSocket-Node#905deb4812572b344f5801f8c9ce8bb02799d82e",
               "requires": {
                 "debug": "^2.2.0",
                 "es5-ext": "^0.10.50",
@@ -4920,6 +4952,11 @@
         "extsprintf": "^1.2.0"
       }
     },
+    "web-streams-polyfill": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/web-streams-polyfill/-/web-streams-polyfill-3.2.0.tgz",
+      "integrity": "sha512-EqPmREeOzttaLRm5HS7io98goBgZ7IVz79aDvqjD0kYXLtFZTc0T/U6wHTPKyIjb+MdN7DFIIX6hgdBEpWmfPA=="
+    },
     "web3": {
       "version": "1.2.2",
       "resolved": "https://registry.npmjs.org/web3/-/web3-1.2.2.tgz",
@@ -5084,6 +5121,24 @@
           "resolved": "https://registry.npmjs.org/prepend-http/-/prepend-http-2.0.0.tgz",
           "integrity": "sha1-6SQ0v6XqjBn0HN/UAddBo8gZ2Jc="
         },
+        "scrypt-shim": {
+          "version": "github:web3-js/scrypt-shim#be5e616323a8b5e568788bf94d03c1b8410eac54",
+          "from": "github:web3-js/scrypt-shim",
+          "requires": {
+            "scryptsy": "^2.1.0",
+            "semver": "^6.3.0"
+          }
+        },
+        "scryptsy": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/scryptsy/-/scryptsy-2.1.0.tgz",
+          "integrity": "sha512-1CdSqHQowJBnMAFyPEBRfqag/YP9OF394FV+4YREIJX4ljD7OxvQRDayyoyyCk+senRjSkP6VnUNQmVQqB6g7w=="
+        },
+        "semver": {
+          "version": "6.3.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
+          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw=="
+        },
         "swarm-js": {
           "version": "0.1.39",
           "resolved": "https://registry.npmjs.org/swarm-js/-/swarm-js-0.1.39.tgz",
@@ -5426,6 +5481,19 @@
             "underscore": "1.9.1",
             "web3-core-helpers": "1.2.2",
             "websocket": "github:web3-js/WebSocket-Node#905deb4812572b344f5801f8c9ce8bb02799d82e"
+          },
+          "dependencies": {
+            "websocket": {
+              "version": "github:web3-js/WebSocket-Node#905deb4812572b344f5801f8c9ce8bb02799d82e",
+              "from": "github:web3-js/WebSocket-Node#905deb4812572b344f5801f8c9ce8bb02799d82e",
+              "requires": {
+                "debug": "^2.2.0",
+                "es5-ext": "^0.10.50",
+                "nan": "^2.14.0",
+                "typedarray-to-buffer": "^3.1.5",
+                "yaeti": "^0.0.6"
+              }
+            }
           }
         },
         "web3-shh": {
@@ -5746,6 +5814,26 @@
         "underscore": "1.8.3",
         "web3-core-helpers": "1.0.0-beta.36",
         "websocket": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2"
+      },
+      "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"
+          }
+        },
+        "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"
+          }
+        }
       }
     },
     "web3-shh": {
@@ -5780,26 +5868,6 @@
         }
       }
     },
-    "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"
-          }
-        }
-      }
-    },
     "which": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
diff --git a/integration-tests/package.json b/integration-tests/package.json
index e3c4d3a..7edaea2 100644
--- a/integration-tests/package.json
+++ b/integration-tests/package.json
@@ -25,7 +25,7 @@
     "ganache-cli": "6.4.3",
     "hash.js": "1.1.7",
     "mocha": "6.1.4",
-    "node-fetch": "2.6.0",
+    "node-fetch": "3.1.1",
     "openzeppelin-solidity": "1.12.0",
     "quorum-js": "0.3.0",
     "scrypt-shim": "github:web3-js/scrypt-shim",