diff --git a/Dockerfile b/Dockerfile
index e30663c..2c01bed 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM --platform=linux/amd64 alpine/helm:3.14.4
+FROM --platform=linux/amd64 alpine/helm:3.21.2@sha256:d3e563902595dbfa058aa820d516557d12fcbace1332027a6e513632e2c08539
 # Helm supported version along with K8 version: https://helm.sh/docs/topics/version_skew/
 # List of Helm images: https://hub.docker.com/r/alpine/helm/tags