diff --git a/clusters/cl01tl/applications/roundcube/values.yaml b/clusters/cl01tl/applications/roundcube/values.yaml
index 72a2b8936..d4e3067e0 100644
--- a/clusters/cl01tl/applications/roundcube/values.yaml
+++ b/clusters/cl01tl/applications/roundcube/values.yaml
@@ -58,7 +58,7 @@ roundcube:
         nginx:
           image:
             repository: nginx
-            tag: 1.27.5-alpine
+            tag: 1.28.0-alpine
             pullPolicy: IfNotPresent
           env:
             - name: NGINX_HOST