diff --git a/docker/Dockerfile.arm b/docker/Dockerfile.arm
index 1699056..c13fb8c 100644
--- a/docker/Dockerfile.arm
+++ b/docker/Dockerfile.arm
@@ -1,4 +1,4 @@
-FROM arm32v7/alpine:3.14@sha256:e12ff876f0075740ed3d7bdf788107ae84c1b3dd6dc98b3baea41088aba5236f
+FROM arm32v7/alpine:3.15@sha256:5b86708e3b4d1f78c9f5252bd1713365c53f8ac84a101a647441861960d16682
 
 LABEL maintainer="Robert Kaussow <mail@thegeeklab.de>"
 LABEL org.opencontainers.image.authors="Robert Kaussow <mail@thegeeklab.de>"