diff --git a/backend/package-lock.json b/backend/package-lock.json
index 7e1f849..84434ec 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -10,7 +10,7 @@
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         "@nomiclabs/hardhat-ethers": "^2.2.1",
-        "@nomiclabs/hardhat-waffle": "^2.0.3",
+        "@nomiclabs/hardhat-waffle": "^2.0.5",
         "@openzeppelin/contracts": "^4.8.0",
         "@testing-library/jest-dom": "^5.14.1",
         "@testing-library/react": "^13.0.0",
@@ -5607,16 +5607,12 @@
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-        "ethereum-waffle": "^3.2.0",
+        "ethereum-waffle": "*",
         "ethers": "^5.0.0",
         "hardhat": "^2.0.0"
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@@ -6750,7 +6746,8 @@
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@@ -7105,28 +7102,6 @@
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-      "resolved": "https://registry.npmjs.org/@types/sinon/-/sinon-10.0.13.tgz",
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-    "node_modules/@types/sinon-chai": {
-      "version": "3.2.9",
-      "resolved": "https://registry.npmjs.org/@types/sinon-chai/-/sinon-chai-3.2.9.tgz",
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-      "dependencies": {
-        "@types/chai": "*",
-        "@types/sinon": "*"
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-    },
-    "node_modules/@types/sinonjs__fake-timers": {
-      "version": "8.1.2",
-      "resolved": "https://registry.npmjs.org/@types/sinonjs__fake-timers/-/sinonjs__fake-timers-8.1.2.tgz",
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       "resolved": "https://registry.npmjs.org/@types/sockjs/-/sockjs-0.3.33.tgz",
@@ -7153,20 +7128,6 @@
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-    "node_modules/@types/underscore": {
-      "version": "1.11.4",
-      "resolved": "https://registry.npmjs.org/@types/underscore/-/underscore-1.11.4.tgz",
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-    },
-    "node_modules/@types/web3": {
-      "version": "1.0.19",
-      "resolved": "https://registry.npmjs.org/@types/web3/-/web3-1.0.19.tgz",
-      "integrity": "sha512-fhZ9DyvDYDwHZUp5/STa9XW2re0E8GxoioYJ4pEUZ13YHpApSagixj7IAdoYH5uAK+UalGq6Ml8LYzmgRA/q+A==",
-      "dependencies": {
-        "@types/bn.js": "*",
-        "@types/underscore": "*"
-      }
-    },
     "node_modules/@types/ws": {
       "version": "8.5.3",
       "resolved": "https://registry.npmjs.org/@types/ws/-/ws-8.5.3.tgz",
@@ -41453,13 +41414,10 @@
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     "@nomiclabs/hardhat-waffle": {
-      "version": "2.0.3",
-      "resolved": "https://registry.npmjs.org/@nomiclabs/hardhat-waffle/-/hardhat-waffle-2.0.3.tgz",
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-      "requires": {
-        "@types/sinon-chai": "^3.2.3",
-        "@types/web3": "1.0.19"
-      }
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/@nomiclabs/hardhat-waffle/-/hardhat-waffle-2.0.5.tgz",
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+      "requires": {}
     },
     "@openzeppelin/contracts": {
       "version": "4.8.0",
@@ -42289,7 +42247,8 @@
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       "version": "4.3.4",
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-      "integrity": "sha512-KnRanxnpfpjUTqTCXslZSEdLfXExwgNxYPdiO2WGUj8+HDjFi8R3k5RVKPeSCzLjCcshCAtVO2QBbVuAV4kTnw=="
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+      "peer": true
     },
     "@types/chai-as-promised": {
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@@ -42636,28 +42595,6 @@
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       }
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-    "@types/sinon": {
-      "version": "10.0.13",
-      "resolved": "https://registry.npmjs.org/@types/sinon/-/sinon-10.0.13.tgz",
-      "integrity": "sha512-UVjDqJblVNQYvVNUsj0PuYYw0ELRmgt1Nt5Vk0pT5f16ROGfcKJY8o1HVuMOJOpD727RrGB9EGvoaTQE5tgxZQ==",
-      "requires": {
-        "@types/sinonjs__fake-timers": "*"
-      }
-    },
-    "@types/sinon-chai": {
-      "version": "3.2.9",
-      "resolved": "https://registry.npmjs.org/@types/sinon-chai/-/sinon-chai-3.2.9.tgz",
-      "integrity": "sha512-/19t63pFYU0ikrdbXKBWj9PCdnKyTd0Qkz0X91Ta081cYsq90OxYdcWwK/dwEoDa6dtXgj2HJfmzgq+QZTHdmQ==",
-      "requires": {
-        "@types/chai": "*",
-        "@types/sinon": "*"
-      }
-    },
-    "@types/sinonjs__fake-timers": {
-      "version": "8.1.2",
-      "resolved": "https://registry.npmjs.org/@types/sinonjs__fake-timers/-/sinonjs__fake-timers-8.1.2.tgz",
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-    },
     "@types/sockjs": {
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       "resolved": "https://registry.npmjs.org/@types/sockjs/-/sockjs-0.3.33.tgz",
@@ -42684,20 +42621,6 @@
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-      "integrity": "sha512-uO4CD2ELOjw8tasUrAhvnn2W4A0ZECOvMjCivJr4gA9pGgjv+qxKWY9GLTMVEK8ej85BxQOocUyE7hImmSQYcg=="
-    },
-    "@types/web3": {
-      "version": "1.0.19",
-      "resolved": "https://registry.npmjs.org/@types/web3/-/web3-1.0.19.tgz",
-      "integrity": "sha512-fhZ9DyvDYDwHZUp5/STa9XW2re0E8GxoioYJ4pEUZ13YHpApSagixj7IAdoYH5uAK+UalGq6Ml8LYzmgRA/q+A==",
-      "requires": {
-        "@types/bn.js": "*",
-        "@types/underscore": "*"
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     "@types/ws": {
       "version": "8.5.3",
       "resolved": "https://registry.npmjs.org/@types/ws/-/ws-8.5.3.tgz",
diff --git a/backend/package.json b/backend/package.json
index 25994d3..fb75cd4 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -5,7 +5,7 @@
   "dependencies": {
     "@nomicfoundation/hardhat-toolbox": "^2.0.0",
     "@nomiclabs/hardhat-ethers": "^2.2.1",
-    "@nomiclabs/hardhat-waffle": "^2.0.3",
+    "@nomiclabs/hardhat-waffle": "^2.0.5",
     "@openzeppelin/contracts": "^4.8.0",
     "@testing-library/jest-dom": "^5.14.1",
     "@testing-library/react": "^13.0.0",