diff --git a/Dockerfile b/Dockerfile
index ad82465..bb2edaf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,9 @@
 # Base-Image
 FROM alpine:latest AS builder
 
+# Pakete installieren
+RUN apk add --no-cache build-base
+
 # Arbeitsverzeichnis setzen
 WORKDIR /app
 
@@ -13,8 +16,8 @@ RUN gcc -o deployment deployment.c
 # Stage 2
 FROM alpine:latest
 
-# Pakete installieren
-RUN apk add --no-cache build-base
+RUN apk upgrade --no-cache
+
 RUN addgroup -S stdgroup && adduser -S stduser -G stdgroup
 
 WORKDIR /app