diff --git a/helmfile/apps/openproject/values.gotmpl b/helmfile/apps/openproject/values.gotmpl
index 5c96f8f8..f1198c71 100644
--- a/helmfile/apps/openproject/values.gotmpl
+++ b/helmfile/apps/openproject/values.gotmpl
@@ -86,7 +86,8 @@ environment:
   OPENPROJECT_FOG_CREDENTIALS_PROVIDER: {{ .Values.objectstores.openproject.provider | default "AWS" | quote }}
   OPENPROJECT_FOG_CREDENTIALS_REGION: {{ .Values.objectstores.openproject.region | quote }}
   OPENPROJECT_FOG_DIRECTORY: {{ .Values.objectstores.openproject.bucket | quote }}
-  OPENPROJECT_FOG_CREDENTIALS_USE__IAM__PROFILE : {{ .Values.objectstores.openproject.useIAMProfile | default "false" | quote }}
+  OPENPROJECT_FOG_CREDENTIALS_USE__IAM__PROFILE: {{ .Values.objectstores.openproject.useIAMProfile | default "false" | quote }}
+  OPENPROJECT_HOME__URL: {{ printf "https://%s.%s/" .Values.global.hosts.univentionManagementStack .Values.global.domain | quote }}
 
 replicaCount: {{ .Values.replicas.openproject }}
 
diff --git a/helmfile/environments/default/images.yaml b/helmfile/environments/default/images.yaml
index 5d9cc09e..98b18458 100644
--- a/helmfile/environments/default/images.yaml
+++ b/helmfile/environments/default/images.yaml
@@ -219,7 +219,7 @@ images:
     # registryUrl=https://docker.io
     # dependencyType=vendor
     repository: "openproject/open_desk"
-    tag: "dev@sha256:3c9d110c0221621530a431b5899ba16956db8253f491a55a220ec642473cb61f"
+    tag: "release-13.1@sha256:1dc528de7e38d9c461188e53b2153b1a5ede374f83dde7b32d9c7c057c802178"
     # @supplier: "OpenProject"
   openprojectInitDb:
     # renovate: