diff --git a/composer.json b/composer.json
index a21a6269..d14cba2b 100644
--- a/composer.json
+++ b/composer.json
@@ -30,7 +30,7 @@
         "ext-libxml": "*",
         "ext-simplexml": "*",
         "ext-xmlwriter": "*",
-        "ibexa/core": "~4.6.0@dev",
+        "ibexa/core": "dev-ibx-6937-adjusted-file-size-criterion as 4.6.x-dev",
         "symfony/http-kernel": "^5.3",
         "symfony/dependency-injection": "^5.3",
         "symfony/routing": "^5.3",