diff --git a/composer.json b/composer.json
index 14813fe..a366cb0 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,7 @@
     ],
     "require": {
         "silverstripe/framework": "^4.0@dev",
-        "silverstripe/asset-admin": "^4.0@dev"
+        "silverstripe/asset-admin": "^1.0@dev"
     },
     "extra": {
         "branch-alias": {