diff --git a/Dockerfile b/Dockerfile
index fb3f016..10326df 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
-# Base-Image 
-FROM alpine:3.22 AS builder
+# Base-Image
+FROM alpine:3.23 AS builder
 
 # Pakete installieren + Updates einspielen
 RUN apk upgrade --no-cache && apk add --no-cache gcc musl-dev
@@ -15,7 +15,7 @@ RUN gcc -O2 -o deployment deployment.c
 
 
 # Base-Image
-FROM alpine:3.22
+FROM alpine:3.23
 
 # Sicherheitsupdates einspielen
 RUN apk upgrade --no-cache
@@ -28,9 +28,9 @@ COPY --from=builder /app/deployment /app/deployment
 
 # Verzeichnis für Ausgabe anlegen + User erstellen
 RUN addgroup -S appuser \
- && adduser -S appuser -G appuser \
- && mkdir /output \
- && chown -R appuser:appuser /app /output
+&& adduser -S appuser -G appuser \
+&& mkdir /output \
+&& chown -R appuser:appuser /app /output
 
 # Datavolume für Ausgabe
 VOLUME ["/output"]
@@ -40,7 +40,7 @@ USER appuser
 
 # Healthcheck
 HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
-  CMD test -s /output/output.txt || exit 1
+CMD test -s /output/output.txt || exit 1
 
 # Ausgabe wird ins Volume geschrieben
 ENTRYPOINT ["/bin/sh", "-c"]