diff --git a/docker/Dockerfile.arm64 b/docker/Dockerfile.arm64
index be800c0..3ee04ba 100644
--- a/docker/Dockerfile.arm64
+++ b/docker/Dockerfile.arm64
@@ -1,4 +1,4 @@
-FROM arm64v8/alpine:3.14@sha256:b06a5cf61b2956088722c4f1b9a6f71dfe95f0b1fe285d44195452b8a1627de7
+FROM arm64v8/alpine:3.15@sha256:76467a0fb072205433a0596be103d4555357fced110dfc06ae74d16045ec5fc3
 
 LABEL maintainer="Robert Kaussow <mail@thegeeklab.de>"
 LABEL org.opencontainers.image.authors="Robert Kaussow <mail@thegeeklab.de>"