diff --git a/yarn.lock b/yarn.lock
index e7a1afd..161106f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2150,12 +2150,9 @@
     undici "^5.14.0"
 
 "@nomiclabs/hardhat-waffle@^2.0.2":
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/@nomiclabs/hardhat-waffle/-/hardhat-waffle-2.0.3.tgz#9c538a09c5ed89f68f5fd2dc3f78f16ed1d6e0b1"
-  integrity sha512-049PHSnI1CZq6+XTbrMbMv5NaL7cednTfPenx02k3cEh8wBMLa6ys++dBETJa6JjfwgA9nBhhHQ173LJv6k2Pg==
-  dependencies:
-    "@types/sinon-chai" "^3.2.3"
-    "@types/web3" "1.0.19"
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/@nomiclabs/hardhat-waffle/-/hardhat-waffle-2.0.6.tgz#d11cb063a5f61a77806053e54009c40ddee49a54"
+  integrity sha512-+Wz0hwmJGSI17B+BhU/qFRZ1l6/xMW82QGXE/Gi+WTmwgJrQefuBs1lIf7hzQ1hLk6hpkvb/zwcNkpVKRYTQYg==
 
 "@nomiclabs/hardhat-web3@^2.0.0":
   version "2.0.0"
@@ -2909,7 +2906,7 @@
   dependencies:
     "@types/node" "*"
 
-"@types/chai@*", "@types/chai@^4.3.0":
+"@types/chai@^4.3.0":
   version "4.3.0"
   resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.3.0.tgz#23509ebc1fa32f1b4d50d6a66c4032d5b8eaabdc"
   integrity sha512-/ceqdqeRraGolFTcfoXNiqjyQhZzbINDngeoAq9GoHa8PPK1yNzTaxWjA6BFWp5Ua9JpXEMSS4s5i9tS0hOJtw==
@@ -3215,36 +3212,11 @@
     "@types/mime" "*"
     "@types/node" "*"
 
-"@types/sinon-chai@^3.2.3":
-  version "3.2.8"
-  resolved "https://registry.yarnpkg.com/@types/sinon-chai/-/sinon-chai-3.2.8.tgz#5871d09ab50d671d8e6dd72e9073f8e738ac61dc"
-  integrity sha512-d4ImIQbT/rKMG8+AXpmcan5T2/PNeSjrYhvkwet6z0p8kzYtfgA32xzOBlbU0yqJfq+/0Ml805iFoODO0LP5/g==
-  dependencies:
-    "@types/chai" "*"
-    "@types/sinon" "*"
-
-"@types/sinon@*":
-  version "10.0.11"
-  resolved "https://registry.yarnpkg.com/@types/sinon/-/sinon-10.0.11.tgz#8245827b05d3fc57a6601bd35aee1f7ad330fc42"
-  integrity sha512-dmZsHlBsKUtBpHriNjlK0ndlvEh8dcb9uV9Afsbt89QIyydpC7NcR+nWlAhASfy3GHnxTl4FX/aKE7XZUt/B4g==
-  dependencies:
-    "@types/sinonjs__fake-timers" "*"
-
-"@types/sinonjs__fake-timers@*":
-  version "8.1.1"
-  resolved "https://registry.yarnpkg.com/@types/sinonjs__fake-timers/-/sinonjs__fake-timers-8.1.1.tgz#b49c2c70150141a15e0fa7e79cf1f92a72934ce3"
-  integrity sha512-0kSuKjAS0TrGLJ0M/+8MaFkGsQhZpB6pxOmvS3K8FYI72K//YmdfoW9X2qPsAKh1mkwxGD5zib9s1FIFed6E8g==
-
 "@types/solidity-parser-antlr@^0.2.3":
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/@types/solidity-parser-antlr/-/solidity-parser-antlr-0.2.3.tgz#bb2d9c6511bf483afe4fc3e2714da8a924e59e3f"
   integrity sha512-FoSyZT+1TTaofbEtGW1oC9wHND1YshvVeHerME/Jh6gIdHbBAWFW8A97YYqO/dpHcFjIwEPEepX0Efl2ckJgwA==
 
-"@types/underscore@*":
-  version "1.11.4"
-  resolved "https://registry.yarnpkg.com/@types/underscore/-/underscore-1.11.4.tgz#62e393f8bc4bd8a06154d110c7d042a93751def3"
-  integrity sha512-uO4CD2ELOjw8tasUrAhvnn2W4A0ZECOvMjCivJr4gA9pGgjv+qxKWY9GLTMVEK8ej85BxQOocUyE7hImmSQYcg==
-
 "@types/utf8@^2.1.6":
   version "2.1.6"
   resolved "https://registry.yarnpkg.com/@types/utf8/-/utf8-2.1.6.tgz#430cabb71a42d0a3613cce5621324fe4f5a25753"
@@ -3257,14 +3229,6 @@
   dependencies:
     "@types/ethereum-protocol" "*"
 
-"@types/web3@1.0.19":
-  version "1.0.19"
-  resolved "https://registry.yarnpkg.com/@types/web3/-/web3-1.0.19.tgz#46b85d91d398ded9ab7c85a5dd57cb33ac558924"
-  integrity sha512-fhZ9DyvDYDwHZUp5/STa9XW2re0E8GxoioYJ4pEUZ13YHpApSagixj7IAdoYH5uAK+UalGq6Ml8LYzmgRA/q+A==
-  dependencies:
-    "@types/bn.js" "*"
-    "@types/underscore" "*"
-
 "@types/yargs-parser@*":
   version "21.0.0"
   resolved "https://registry.yarnpkg.com/@types/yargs-parser/-/yargs-parser-21.0.0.tgz#0c60e537fa790f5f9472ed2776c2b71ec117351b"