diff --git a/Dockerfile b/Dockerfile
index 5f84b51..b8159b2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.21.2
+FROM alpine:3.21.3
 RUN apk add --no-cache git curl bash jq
 RUN curl -s https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh | bash
 RUN mv /kustomize /bin/kustomize