diff --git a/Dockerfile b/Dockerfile
index 800e67e..1649525 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # tini
-FROM --platform=${BUILDPLATFORM} alpine:3.18 as tini
+FROM --platform=${BUILDPLATFORM} alpine:3.19 as tini
 LABEL maintainer="info@pascaliske.dev"
 
 # environment
@@ -16,7 +16,7 @@ RUN case ${TARGETPLATFORM} in \
     && chmod +x /tini
 
 # final image
-FROM alpine:3.18
+FROM alpine:3.19
 LABEL maintainer="info@pascaliske.dev"
 
 # environment