diff --git a/dockerfiles/cd/utils/ks3util/Dockerfile b/dockerfiles/cd/utils/ks3util/Dockerfile
index 9649a9f2..656cd668 100644
--- a/dockerfiles/cd/utils/ks3util/Dockerfile
+++ b/dockerfiles/cd/utils/ks3util/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.21.0
+FROM alpine:3.21.2
 
 LABEL org.opencontainers.image.authors "wuhui.zuo@pingcap.com"
 LABEL org.opencontainers.image.description "utils image for CD release"
diff --git a/dockerfiles/cd/utils/release/Dockerfile b/dockerfiles/cd/utils/release/Dockerfile
index fa86a417..c6bb6669 100644
--- a/dockerfiles/cd/utils/release/Dockerfile
+++ b/dockerfiles/cd/utils/release/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.21.0
+FROM alpine:3.21.2
 
 LABEL org.opencontainers.image.authors "wuhui.zuo@pingcap.com"
 LABEL org.opencontainers.image.description "utils image for CD release"
diff --git a/dockerfiles/cd/utils/remote/Dockerfile b/dockerfiles/cd/utils/remote/Dockerfile
index 5442e98c..13fba3b2 100644
--- a/dockerfiles/cd/utils/remote/Dockerfile
+++ b/dockerfiles/cd/utils/remote/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.21.0
+FROM alpine:3.21.2
 
 LABEL org.opencontainers.image.authors "wuhui.zuo@pingcap.com"
 LABEL org.opencontainers.image.description "utils image for remote building"