diff --git a/src/package.json b/src/package.json
index 7685263..d986dbe 100644
--- a/src/package.json
+++ b/src/package.json
@@ -4,7 +4,7 @@
   "description": "Loads, overrides and sets predefined cookies into the browser",
   "directories": {},
   "devDependencies": {
-    "web-ext": "^7.0.0"
+    "web-ext": "^9.0.0"
   },
   "scripts": {
     "web-ext": "web-ext"