diff --git a/docker/Dockerfile.amd64 b/docker/Dockerfile.amd64
index 2517aa8..95f99af 100644
--- a/docker/Dockerfile.amd64
+++ b/docker/Dockerfile.amd64
@@ -1,4 +1,4 @@
-FROM alpine:3.14@sha256:e1c082e3d3c45cccac829840a25941e679c25d438cc8412c2fa221cf1a824e6a
+FROM alpine:3.15@sha256:fb150366bfb5a297a7f8852e0cec462a12f638374f8a04ad235c56a97e780add
 
 LABEL maintainer="Robert Kaussow <mail@thegeeklab.de>"
 LABEL org.opencontainers.image.authors="Robert Kaussow <mail@thegeeklab.de>"