diff --git a/composer.json b/composer.json
index 6c912df..eac987b 100644
--- a/composer.json
+++ b/composer.json
@@ -8,7 +8,7 @@
         "neos/neos": "^4.0 || ^5.0 || dev-master",
         "neos/content-repository": "^4.0 || ^5.0 || dev-master",
         "neos/content-repository-search": "^3.0 || dev-master",
-        "flowpack/simplesearch": "^3.0 || dev-master",
+        "flowpack/simplesearch": "^3.0 || ^4.0 || dev-master",
         "symfony/yaml": "*"
     },
     "autoload": {