diff --git a/dockerfiles/Dockerfile-for-frpc b/dockerfiles/Dockerfile-for-frpc
index e8bfa478706..375859232b5 100644
--- a/dockerfiles/Dockerfile-for-frpc
+++ b/dockerfiles/Dockerfile-for-frpc
@@ -5,7 +5,7 @@ WORKDIR /building
 
 RUN make frpc
 
-FROM alpine:3
+FROM alpine:3.20.0
 
 COPY --from=building /building/bin/frpc /usr/bin/frpc