diff --git a/argocd/apps/open-webui/values-openwebui.yaml b/argocd/apps/open-webui/values-openwebui.yaml
index 82a7c08..cf82c93 100644
--- a/argocd/apps/open-webui/values-openwebui.yaml
+++ b/argocd/apps/open-webui/values-openwebui.yaml
@@ -27,6 +27,8 @@ spec:
             value: "https://innollm.innovation-hub-niedersachsen.de/"
           - name: ENABLE_OAUTH_LOGOUT
             value: "true"
+          - name: WEBUI_SECRET_KEY
+            value: "17e027e793724fcbf0400c91374d6960f1beec64b52939c4ee20c1b6faf859ad"
 
         ingress:
           enabled: true