diff --git a/yarn.lock b/yarn.lock
index e17b293..38fc28f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1578,9 +1578,11 @@ nice-try@^1.0.4:
   integrity sha512-1nh45deeb5olNY7eX82BkPO7SSxR5SSYJiPTrTdFUVYwAl8CKMA5N9PjTYkHiRjisVcxcQ1HXdLhx2qxxJzLNQ==
 
 node-fetch@^2.3.0:
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.3.0.tgz#1a1d940bbfb916a1d3e0219f037e89e71f8c5fa5"
-  integrity sha512-MOd8pV3fxENbryESLgVIeaGKrdl+uaYhCSSVkjeOb/31/njTpcis5aWfdqgNlHIrKOLRbMnfPINPOML2CIFeXA==
+  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"
 
 npm-run-path@^2.0.0:
   version "2.0.2"
@@ -2245,6 +2247,11 @@ tough-cookie@~2.4.3:
     psl "^1.1.24"
     punycode "^1.4.1"
 
+tr46@~0.0.3:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/tr46/-/tr46-0.0.3.tgz#8184fd347dac9cdc185992f3a6622e14b9d9ab6a"
+  integrity sha1-gYT9NH2snNwYWZLzpmIuFLnZq2o=
+
 truffle-hdwallet-provider@^1.0.6:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/truffle-hdwallet-provider/-/truffle-hdwallet-provider-1.0.6.tgz#7cda437c9a25bda6bbc5f4ed018e932254ecc867"
@@ -2596,6 +2603,11 @@ web3@1.0.0-beta.37:
     web3-shh "1.0.0-beta.37"
     web3-utils "1.0.0-beta.37"
 
+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=
+
 websocket@^1.0.28:
   version "1.0.28"
   resolved "https://registry.yarnpkg.com/websocket/-/websocket-1.0.28.tgz#9e5f6fdc8a3fe01d4422647ef93abdd8d45a78d3"
@@ -2615,6 +2627,14 @@ websocket@^1.0.28:
     typedarray-to-buffer "^3.1.2"
     yaeti "^0.0.6"
 
+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"
+
 which@^1.2.9:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"