diff --git a/argocd/apps/innollm/openwebui.yaml b/argocd/apps/innollm/openwebui.yaml
index e70fd17..14996e2 100644
--- a/argocd/apps/innollm/openwebui.yaml
+++ b/argocd/apps/innollm/openwebui.yaml
@@ -13,6 +13,8 @@ spec:
       parameters:
         - name: serviceAccount.enable
           value: 'false'
+        - name: persistence.size
+          value: 500Gi
         - name: ingress.class
           value: 'traefik'
         - name: ingress.enabled