diff --git a/backend/plugin.yaml b/backend/plugin.yaml
index 5b80731bd..a7aa6ad97 100755
--- a/backend/plugin.yaml
+++ b/backend/plugin.yaml
@@ -52,7 +52,7 @@ plugin:
     support: https://knx-user-forum.de/forum/supportforen/smarthome-py/959964-support-thread-für-das-backend-plugin
 
     version: 1.4.9                 # Plugin version
-    sh_minversion: 1.4a            # minimum shNG version to use this plugin
+    sh_minversion: 1.4.2           # minimum shNG version to use this plugin
 #    sh_maxversion:                 # maximum shNG version to use this plugin (leave empty if latest)
     multi_instance: False          # plugin supports multi instance
     classname: BackendServer       # class containing the plugin