diff --git a/ct/deconz-v3.sh b/ct/deconz-v3.sh
index 4726606a..f882fdf7 100644
--- a/ct/deconz-v3.sh
+++ b/ct/deconz-v3.sh
@@ -4,7 +4,7 @@ var_disk="2"
 var_cpu="1"
 var_ram="512"
 var_os="ubuntu"
-var_version="22.04"
+var_version="20.04"
 NEXTID=$(pvesh get /cluster/nextid)
 INTEGER='^[0-9]+$'
 NSAPP=$(echo ${APP,,} | tr -d ' ')