diff --git a/docker/Dockerfile.arm64 b/docker/Dockerfile.arm64
index ff98b63..0038c39 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:c74f1b1166784193ea6c8f9440263b9be6cae07dfe35e32a5df7a31358ac2060
 
 LABEL maintainer="ownCloud DevOps <devops@owncloud.com>"
 LABEL org.opencontainers.image.authors="ownCloud DevOps <devops@owncloud.com>"