diff --git a/Dockerfile b/Dockerfile
index 4a84719..1865dae 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:latest
+FROM alpine:3.18.3
 MAINTAINER Andreas Pfeiffer - Netstack <pfeiffer@netstack.de>
 
 #Install JAVA and Gradle