diff --git a/k8s-peterg/argo-workflows/values.yaml b/k8s-peterg/argo-workflows/values.yaml
index 26b8dcf..fb0980b 100644
--- a/k8s-peterg/argo-workflows/values.yaml
+++ b/k8s-peterg/argo-workflows/values.yaml
@@ -155,7 +155,7 @@ server:
     # -- Repository to use for the server
     repository: argoproj/argocli
     # -- Image tag for the Argo Workflows server. Defaults to `.Values.images.tag`.
-    tag: ""
+    tag: "@sha256:aec6cb67475980900959835755411de86851b1a70a3981e8d52ce5bb5e2e7c37"
   rbac:
     # -- Adds Role and RoleBinding for the server.
     create: true