diff --git a/protocol/package.json b/protocol/package.json
index 616f09b..1b13a55 100644
--- a/protocol/package.json
+++ b/protocol/package.json
@@ -17,7 +17,7 @@
     "chai": "^4.2.0",
     "dotenv": "^8.2.0",
     "ethereum-waffle": "^3.0.0",
-    "ethers": "^5.0.0",
+    "ethers": "^5.7.2",
     "hardhat": "^2.0.5",
     "hardhat-typechain": "^0.3.3",
     "ts-generator": "^0.1.1",