diff --git a/kubectl-helm-az/Dockerfile b/kubectl-helm-az/Dockerfile
index f5369b16..52671e74 100644
--- a/kubectl-helm-az/Dockerfile
+++ b/kubectl-helm-az/Dockerfile
@@ -4,7 +4,7 @@ FROM lachlanevenson/k8s-kubectl:v1.25.4
 # We build our own base az alpine image becase all official images currently
 # have security vulnerabilities (as of mcr.microsoft.com/azure-cli:2.0.64).
 # Ref: https://github.com/Azure/azure-cli/issues/9167
-FROM alpine:3.19
+FROM alpine:3.20
 ENV AZ 2.0.64
 RUN apk add -U python3 bash ca-certificates && \
   apk add --virtual=build gcc python3-dev musl-dev libffi-dev openssl-dev make  && \