diff --git a/cmd/pipecd/Dockerfile b/cmd/pipecd/Dockerfile
index e70325a23a..64af3e06d2 100644
--- a/cmd/pipecd/Dockerfile
+++ b/cmd/pipecd/Dockerfile
@@ -29,7 +29,7 @@ COPY . ./
 
 RUN make build/go MOD=pipecd
 
-FROM alpine:3.21.0
+FROM alpine:3.21.3
 
 ARG GOOGLE_CLOUD_SDK_VERSION=477.0.0