diff --git a/Dockerfile b/Dockerfile
index 8d9d0d9..b70a1e7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.21
+FROM alpine:3.22
 
 # renovate: datasource=repology depName=alpine_3_21/nut versioning=loose
 ENV NUT_VERSION="2.8.2-r2"