diff --git a/CloudronManifest.json b/CloudronManifest.json
index 51c7b4d..864d5e1 100644
--- a/CloudronManifest.json
+++ b/CloudronManifest.json
@@ -30,7 +30,7 @@
     "https://screenshots.cloudron.io/org.matrix.synapse/3.png"
   ],
   "postInstallMessage": "file://POSTINSTALL.md",
-  "minBoxVersion": "7.3.1",
+  "minBoxVersion": "7.5.1",
   "forumUrl": "https://forum.cloudron.io/category/50/matrix-synapse-riot",
   "documentationUrl": "https://docs.cloudron.io/apps/synapse/",
   "optionalSso": true