diff --git a/pulsar-client-cpp/docker/alpine/Dockerfile b/pulsar-client-cpp/docker/alpine/Dockerfile
index 80626afec68d1..6391ade6161e6 100644
--- a/pulsar-client-cpp/docker/alpine/Dockerfile
+++ b/pulsar-client-cpp/docker/alpine/Dockerfile
@@ -18,7 +18,7 @@
 #
 
 
-FROM alpine:3.11
+FROM alpine:3.21.3
 
 RUN apk update \
     && apk upgrade \