diff --git a/extensions/lock/composer.json b/extensions/lock/composer.json
index 9172a4515..850ef4b4d 100644
--- a/extensions/lock/composer.json
+++ b/extensions/lock/composer.json
@@ -15,7 +15,7 @@
         "source": "https://github.com/flarum/lock"
     },
     "require": {
-        "flarum/core": "^0.1.0-beta.8"
+        "flarum/core": "^0.1.0-beta.9"
     },
     "autoload": {
         "psr-4": {