diff --git a/package.json b/package.json
index b852b72..79ffcab 100644
--- a/package.json
+++ b/package.json
@@ -75,7 +75,7 @@
     "@openzeppelin/contracts": "^4.0.0",
     "babel-plugin-transform-runtime": "^6.22.0",
     "body-parser": "^1.18.2",
-    "cross-fetch": "^2.2.2",
+    "cross-fetch": "^3.1.5",
     "crypto-js": "^3.1.9-1",
     "ethers": "^4.0.37",
     "inchjs": "^0.4.1",
diff --git a/yarn.lock b/yarn.lock
index a878add..23bcaf1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4941,20 +4941,19 @@ cross-fetch@3.0.6:
   dependencies:
     node-fetch "2.6.1"
 
-cross-fetch@3.1.4, cross-fetch@^3.0.4:
+cross-fetch@3.1.4:
   version "3.1.4"
   resolved "https://registry.yarnpkg.com/cross-fetch/-/cross-fetch-3.1.4.tgz#9723f3a3a247bf8b89039f3a380a9244e8fa2f39"
   integrity sha512-1eAtFWdIubi6T4XPy6ei9iUFoKpUkIF971QLN8lIvvvwueI65+Nw5haMNKUwfJxabqlIIDODJKGrQ66gxC0PbQ==
   dependencies:
     node-fetch "2.6.1"
 
-cross-fetch@^2.2.2:
-  version "2.2.3"
-  resolved "https://registry.yarnpkg.com/cross-fetch/-/cross-fetch-2.2.3.tgz#e8a0b3c54598136e037f8650f8e823ccdfac198e"
-  integrity sha512-PrWWNH3yL2NYIb/7WF/5vFG3DCQiXDOVf8k3ijatbrtnwNuhMWLC7YF7uqf53tbTFDzHIUD8oITw4Bxt8ST3Nw==
+cross-fetch@^3.0.4, cross-fetch@^3.1.5:
+  version "3.1.5"
+  resolved "https://registry.yarnpkg.com/cross-fetch/-/cross-fetch-3.1.5.tgz#e1389f44d9e7ba767907f7af8454787952ab534f"
+  integrity sha512-lvb1SBsI0Z7GDwmuid+mU3kWVBwTVUbe7S0H52yaaAdQOXq2YktTCZdlAcNKFzE6QtRz0snpw9bNiPeOIkkQvw==
   dependencies:
-    node-fetch "2.1.2"
-    whatwg-fetch "2.0.4"
+    node-fetch "2.6.7"
 
 cross-spawn@^4:
   version "4.0.2"
@@ -10179,11 +10178,6 @@ node-addon-api@^2.0.0:
   resolved "https://registry.yarnpkg.com/node-addon-api/-/node-addon-api-2.0.2.tgz#432cfa82962ce494b132e9d72a15b29f71ff5d32"
   integrity sha512-Ntyt4AIXyaLIuMHF6IOoTakB3K+RWxwtsHNRxllEoA6vPwP9o4866g6YWDLUdnucilZhmkxiHwHr11gAENw+QA==
 
-node-fetch@2.1.2:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.1.2.tgz#ab884e8e7e57e38a944753cec706f788d1768bb5"
-  integrity sha1-q4hOjn5X44qUR1POxwb3iNF2i7U=
-
 node-fetch@2.4.1:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.4.1.tgz#b2e38f1117b8acbedbe0524f041fb3177188255d"
@@ -10194,11 +10188,18 @@ node-fetch@2.6.0:
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.0.tgz#e633456386d4aa55863f676a7ab0daa8fdecb0fd"
   integrity sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA==
 
-node-fetch@2.6.1, node-fetch@^2.6.0, node-fetch@^2.6.1:
+node-fetch@2.6.1:
   version "2.6.1"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.1.tgz#045bd323631f76ed2e2b55573394416b639a0052"
   integrity sha512-V4aYg89jEoVRxRb2fJdAg8FHvI7cEyYdVAh94HH0UIK8oJxUfkjlDQN9RbMx+bEjP7+ggMiFRprSti032Oipxw==
 
+node-fetch@2.6.7, node-fetch@^2.6.0, node-fetch@^2.6.1:
+  version "2.6.7"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.7.tgz#24de9fba827e3b4ae44dc8b20256a379160052ad"
+  integrity sha512-ZjMPFEfVx5j+y2yF35Kzx5sF7kDzxuDj6ziH4FFbOp87zKDZNx8yExJIb05OGF4Nlt9IHFIMBkRl41VdvcNdbQ==
+  dependencies:
+    whatwg-url "^5.0.0"
+
 node-forge@^0.10.0:
   version "0.10.0"
   resolved "https://registry.yarnpkg.com/node-forge/-/node-forge-0.10.0.tgz#32dea2afb3e9926f02ee5ce8794902691a676bf3"
@@ -13774,7 +13775,7 @@ tough-cookie@^2.2.0, tough-cookie@^2.3.1, tough-cookie@~2.5.0:
     punycode "^2.1.1"
     universalify "^0.1.2"
 
-tr46@~0.0.1:
+tr46@~0.0.1, tr46@~0.0.3:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/tr46/-/tr46-0.0.3.tgz#8184fd347dac9cdc185992f3a6622e14b9d9ab6a"
   integrity sha1-gYT9NH2snNwYWZLzpmIuFLnZq2o=
@@ -14937,6 +14938,11 @@ webidl-conversions@^2.0.0:
   resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-2.0.1.tgz#3bf8258f7d318c7443c36f2e169402a1a6703506"
   integrity sha1-O/glj30xjHRDw28uFpQCoaZwNQY=
 
+webidl-conversions@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-3.0.1.tgz#24534275e2a7bc6be7bc86611cc16ae0a5654871"
+  integrity sha1-JFNCdeKnvGvnvIZhHMFq4KVlSHE=
+
 webpack-cli@^3.3.11:
   version "3.3.12"
   resolved "https://registry.yarnpkg.com/webpack-cli/-/webpack-cli-3.3.12.tgz#94e9ada081453cd0aa609c99e500012fd3ad2d4a"
@@ -15014,11 +15020,6 @@ websql@1.0.0:
     sqlite3 "^4.0.0"
     tiny-queue "^0.2.1"
 
-whatwg-fetch@2.0.4:
-  version "2.0.4"
-  resolved "https://registry.yarnpkg.com/whatwg-fetch/-/whatwg-fetch-2.0.4.tgz#dde6a5df315f9d39991aa17621853d720b85566f"
-  integrity sha512-dcQ1GWpOD/eEQ97k66aiEVpNnapVj90/+R+SXTPYGHpYBBypfKJEQjLrvMZ7YXbKm21gXd4NcuxUTjiv1YtLng==
-
 whatwg-url-compat@~0.6.5:
   version "0.6.5"
   resolved "https://registry.yarnpkg.com/whatwg-url-compat/-/whatwg-url-compat-0.6.5.tgz#00898111af689bb097541cd5a45ca6c8798445bf"
@@ -15026,6 +15027,14 @@ whatwg-url-compat@~0.6.5:
   dependencies:
     tr46 "~0.0.1"
 
+whatwg-url@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/whatwg-url/-/whatwg-url-5.0.0.tgz#966454e8765462e37644d3626f6742ce8b70965d"
+  integrity sha1-lmRU6HZUYuN2RNNib2dCzotwll0=
+  dependencies:
+    tr46 "~0.0.3"
+    webidl-conversions "^3.0.0"
+
 whet.extend@~0.9.9:
   version "0.9.9"
   resolved "https://registry.yarnpkg.com/whet.extend/-/whet.extend-0.9.9.tgz#f877d5bf648c97e5aa542fadc16d6a259b9c11a1"