diff --git a/cost-model-addon/package.json b/cost-model-addon/package.json
index 0617743..113c557 100644
--- a/cost-model-addon/package.json
+++ b/cost-model-addon/package.json
@@ -43,7 +43,7 @@
     "react-dom": "^18.3.1",
     "ts-loader": "^9.5.1",
     "typescript": "^5.7.2",
-    "web-ext": "^8.3.0",
+    "web-ext": "^9.3.0",
     "web-ext-plugin": "^2.11.0",
     "webextension-polyfill": "^0.12.0",
     "webpack": "^5.96.1",