diff --git a/pottwal.yml b/pottwal.yml
index 41a96e7..90d910b 100644
--- a/pottwal.yml
+++ b/pottwal.yml
@@ -8,7 +8,7 @@
     mosquitto_image: eclipse-mosquitto:1.6
     mosquitto_data: /srv/data/mosquitto
 
-    openhab_image: openhab/openhab:3.1.0
+    openhab_image: openhab/openhab:2.5.11
     openhab_data: /srv/data/openhab
     openhab_host_port: 8081
     openhab_configuration_source: https://github.com/netz39/n39-openhab.git