diff --git a/Dockerfile b/Dockerfile
index d743ec2..cfe3817 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.19
+FROM alpine:3.19.1
 LABEL maintainer="leto1210"
 LABEL org.label-schema.vcs-url="e.g. https://github.com/leto1210/docker-dnsmasq"