diff --git a/Dockerfile b/Dockerfile
index 8f41896..db25c1e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/alpine:3.15 AS builder
+FROM docker.io/alpine:3.16 AS builder
 
 ENV VERSION=11.0.0-SNAPSHOT.20220625052932 
 RUN apk add --no-cache \
@@ -13,7 +13,7 @@ RUN git checkout "$VERSION"
 RUN mvn package
 
 
-FROM docker.io/thallian/alpine-s6:latest
+FROM docker.io/thallian/alpine-s6:3.16
 
 ENV JAVA_OPTIONS=-Dfile.encoding=UTF-8 -Dsun.jnu.encoding=UTF-8
 ENV AIRSONIC_DIR=/home/airsonic