diff --git a/argocd/apps/openproject/values-openproject.yaml b/argocd/apps/openproject/values-openproject.yaml
index 6b136f0..ba29be2 100644
--- a/argocd/apps/openproject/values-openproject.yaml
+++ b/argocd/apps/openproject/values-openproject.yaml
@@ -41,6 +41,9 @@ spec:
             mail: "inno-netz@innovation-hub-niedersachsen.de"
         ## Configure PostgreSQL settings.
         #
+        persistence:
+          enabled: false
+          accessMode: ReadWriteOnce
         s3:
           enabled: true
           auth: