diff --git a/yarn.lock b/yarn.lock
index e0f7d6e..1298d86 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2491,12 +2491,12 @@ create-require@^1.1.0:
   integrity sha512-dcKFX3jn0MpIaXjisoRvexIJVEKzaq7z2rZKxf+MSr9TkdmHmsU4m2lcLojrj/FHl8mk5VxMmYA+ftRkP/3oKQ==
 
 cross-fetch@^2.1.0, cross-fetch@^2.1.1:
-  version "2.2.3"
-  resolved "https://registry.yarnpkg.com/cross-fetch/-/cross-fetch-2.2.3.tgz#e8a0b3c54598136e037f8650f8e823ccdfac198e"
-  integrity sha512-PrWWNH3yL2NYIb/7WF/5vFG3DCQiXDOVf8k3ijatbrtnwNuhMWLC7YF7uqf53tbTFDzHIUD8oITw4Bxt8ST3Nw==
+  version "2.2.6"
+  resolved "https://registry.yarnpkg.com/cross-fetch/-/cross-fetch-2.2.6.tgz#2ef0bb39a24ac034787965c457368a28730e220a"
+  integrity sha512-9JZz+vXCmfKUZ68zAptS7k4Nu8e2qcibe7WVZYps7sAgk5R8GYTc+T1WR0v1rlP9HxgARmOX1UTIJZFytajpNA==
   dependencies:
-    node-fetch "2.1.2"
-    whatwg-fetch "2.0.4"
+    node-fetch "^2.6.7"
+    whatwg-fetch "^2.0.4"
 
 cross-spawn@^6.0.5:
   version "6.0.5"
@@ -5648,16 +5648,18 @@ node-environment-flags@1.0.6:
     object.getownpropertydescriptors "^2.0.3"
     semver "^5.7.0"
 
-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@^2.6.0, 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:
+  version "2.6.9"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.9.tgz#7c7f744b5cc6eb5fd404e0c7a9fec630a55657e6"
+  integrity sha512-DJm/CJkZkRjKKj4Zi4BsKVZh3ValV5IR5s7LVZnW+6YMh0W1BfNA8XSs6DLMGYlId5F3KnA70uu2qepcR08Qqg==
+  dependencies:
+    whatwg-url "^5.0.0"
+
 node-fetch@~1.7.1:
   version "1.7.3"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.7.3.tgz#980f6f72d85211a5347c6b2bc18c5b84c3eb47ef"
@@ -7388,6 +7390,11 @@ tough-cookie@^2.3.3, tough-cookie@~2.5.0:
     psl "^1.1.28"
     punycode "^2.1.1"
 
+tr46@~0.0.3:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/tr46/-/tr46-0.0.3.tgz#8184fd347dac9cdc185992f3a6622e14b9d9ab6a"
+  integrity sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw==
+
 trim-right@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
@@ -8039,6 +8046,11 @@ web3@1.2.11:
     web3-shh "1.2.11"
     web3-utils "1.2.11"
 
+webidl-conversions@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-3.0.1.tgz#24534275e2a7bc6be7bc86611cc16ae0a5654871"
+  integrity sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ==
+
 websocket@1.0.32:
   version "1.0.32"
   resolved "https://registry.yarnpkg.com/websocket/-/websocket-1.0.32.tgz#1f16ddab3a21a2d929dec1687ab21cfdc6d3dbb1"
@@ -8063,11 +8075,19 @@ websocket@^1.0.31:
     utf-8-validate "^5.0.2"
     yaeti "^0.0.6"
 
-whatwg-fetch@2.0.4:
+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@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/whatwg-url/-/whatwg-url-5.0.0.tgz#966454e8765462e37644d3626f6742ce8b70965d"
+  integrity sha512-saE57nupxk6v3HY35+jzBwYa0rKSy0XR8JSxZPwgLr7ys0IBzhGviA1/TUGJLmSVqs8pb9AnvICXEuOHLprYTw==
+  dependencies:
+    tr46 "~0.0.3"
+    webidl-conversions "^3.0.0"
+
 which-boxed-primitive@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/which-boxed-primitive/-/which-boxed-primitive-1.0.2.tgz#13757bc89b209b049fe5d86430e21cf40a89a8e6"