diff --git a/Dockerfile b/Dockerfile
index 530766f..f6eb396 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Base-Image
-FROM alpine:latest
+FROM alpine:3.15
 
 # Pakete installieren 
 RUN apt-get install -y build-essential gcc curl vim net-tools