diff --git a/packages/hardhat-zksync/package.json b/packages/hardhat-zksync/package.json
index 067a3339..a0139617 100644
--- a/packages/hardhat-zksync/package.json
+++ b/packages/hardhat-zksync/package.json
@@ -44,7 +44,7 @@
     "@openzeppelin/upgrades-core": "^1.37.0",
     "ethers": "^6.12.2",
     "zksync-ethers": "^6.11.2",
-    "chai": "^4.3.4",
+    "chai": "^5.1.2",
     "sinon-chai": "^3.7.0",
     "sinon": "^18.0.0"
   },