diff --git a/Dockerfile b/Dockerfile
index b5046ab..8912b83 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.21.3
+FROM alpine:3.22.1
 
 ARG RESTIC_VERSION=~0.17
 ARG CRON_VERSION=~4