diff --git a/cmd/pipecd/Dockerfile b/cmd/pipecd/Dockerfile
index ee0b99afaa..36584493ba 100644
--- a/cmd/pipecd/Dockerfile
+++ b/cmd/pipecd/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.20
+FROM alpine:3.21.0
 
 ARG GOOGLE_CLOUD_SDK_VERSION=477.0.0