diff --git a/protocol/package.json b/protocol/package.json
index 616f09b..47d0498 100644
--- a/protocol/package.json
+++ b/protocol/package.json
@@ -23,7 +23,7 @@
     "ts-generator": "^0.1.1",
     "ts-node": "^9.0.0",
     "typechain": "^4.0.0",
-    "typescript": "^4.1.2"
+    "typescript": "^4.9.4"
   },
   "scripts": {
     "clean": "hardhat clean",