diff --git a/Dockerfile b/Dockerfile
index d10c5da..02581b7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.13
+FROM alpine:3.17
 
 LABEL org.opencontainers.image.source="https://github.com/powerman/go-service-example"