diff --git a/helmfile/apps/univention-corporate-container/helmfile.yaml b/helmfile/apps/univention-corporate-container/helmfile.yaml
index dd142d92..8a6c84a4 100644
--- a/helmfile/apps/univention-corporate-container/helmfile.yaml
+++ b/helmfile/apps/univention-corporate-container/helmfile.yaml
@@ -4,6 +4,7 @@
 repositories:
   # openDesk Univention Corporate Server (as eval Container)
   - name: "univention-corporate-container-repo"
+    oci: true
     # yamllint disable rule:line-length
     url: >-
       {{ env "PRIVATE_IMAGE_REGISTRY_URL" | default