diff --git a/backend/package.json b/backend/package.json
index a722c81..b6d68b9 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -25,7 +25,7 @@
     "ethers": "6.10.0"
   },
   "devDependencies": {
-    "@nomicfoundation/hardhat-ethers": "^3.0.5",
+    "@nomicfoundation/hardhat-ethers": "^3.1.3",
     "@oasisprotocol/sapphire-contracts": "^0.2.7",
     "@oasisprotocol/sapphire-hardhat": "^2.19.4",
     "@typechain/ethers-v6": "^0.5.1",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 3b95eef..bf173b2 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -49,8 +49,8 @@ importers:
         version: 6.10.0
     devDependencies:
       '@nomicfoundation/hardhat-ethers':
-        specifier: ^3.0.5
-        version: 3.0.5(ethers@6.10.0)(hardhat@2.21.0)
+        specifier: ^3.1.3
+        version: 3.1.3(ethers@6.10.0)(hardhat@2.21.0)
       '@oasisprotocol/sapphire-contracts':
         specifier: ^0.2.7
         version: 0.2.7
@@ -1071,11 +1071,11 @@ packages:
       ethereum-cryptography: 0.1.3
     dev: true
 
-  /@nomicfoundation/hardhat-ethers@3.0.5(ethers@6.10.0)(hardhat@2.21.0):
-    resolution: {integrity: sha512-RNFe8OtbZK6Ila9kIlHp0+S80/0Bu/3p41HUpaRIoHLm6X3WekTd83vob3rE54Duufu1edCiBDxspBzi2rxHHw==}
+  /@nomicfoundation/hardhat-ethers@3.1.3(ethers@6.10.0)(hardhat@2.21.0):
+    resolution: {integrity: sha512-208JcDeVIl+7Wu3MhFUUtiA8TJ7r2Rn3Wr+lSx9PfsDTKkbsAsWPY6N6wQ4mtzDv0/pB9nIbJhkjoHe1EsgNsA==}
     peerDependencies:
-      ethers: ^6.1.0
-      hardhat: ^2.0.0
+      ethers: ^6.14.0
+      hardhat: ^2.28.0
     dependencies:
       debug: 4.3.4(supports-color@8.1.1)
       ethers: 6.10.0
@@ -4189,6 +4189,7 @@ packages:
 
   /lodash.isequal@4.5.0:
     resolution: {integrity: sha512-pDo3lu8Jhfjqls6GkMgpahsF9kCyayhgykjyLMNFTKWrpVdAQtYyB4muAMWozBB4ig/dtWAmsMxLEI8wuz+DYQ==}
+    deprecated: This package is deprecated. Use require('node:util').isDeepStrictEqual instead.
     dev: true
 
   /lodash.merge@4.6.2: