diff --git a/Dockerfile b/Dockerfile
index 93d7bc0..1d1e113 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:latest
+FROM alpine:3.23
 
 # Abhängigkeiten installieren
 RUN apk add --no-cache bash curl jq msmtp ca-certificates tzdata git