diff --git a/extensions/flags/composer.json b/extensions/flags/composer.json
index a9e50fc72..e7f99bf9b 100644
--- a/extensions/flags/composer.json
+++ b/extensions/flags/composer.json
@@ -15,7 +15,7 @@
         "source": "https://github.com/flarum/flarum-ext-flags"
     },
     "require": {
-        "flarum/core": "^0.1.0-beta.3"
+        "flarum/core": "^0.1.0-beta.5"
     },
     "autoload": {
         "psr-4": {