diff --git a/charts/t8s-cluster/values.yaml b/charts/t8s-cluster/values.yaml
index cde9497f49..096dbf805d 100644
--- a/charts/t8s-cluster/values.yaml
+++ b/charts/t8s-cluster/values.yaml
@@ -38,7 +38,7 @@ global:
     image:
       registry: registry.k8s.io
       repository: etcd
-      tag: 3.5.24-0@sha256:251e7e490f64859d329cd963bc879dc04acf3d7195bb52c4c50b4a07bedf37d6
+      tag: 3.6.6-0@sha256:60a30b5d81b2217555e2cfb9537f655b7ba97220b99c39ee2e162a7127225890
   kubectl:
     image:
       registry: docker.io