diff --git a/src/test/resources/org/jvnet/hudson/plugins/platformlabeler/alpine/3.20.5/Dockerfile b/src/test/resources/org/jvnet/hudson/plugins/platformlabeler/alpine/3.20.5/Dockerfile
index ba0f5fdf..e9d7a0d8 100644
--- a/src/test/resources/org/jvnet/hudson/plugins/platformlabeler/alpine/3.20.5/Dockerfile
+++ b/src/test/resources/org/jvnet/hudson/plugins/platformlabeler/alpine/3.20.5/Dockerfile
@@ -1 +1 @@
-FROM alpine:3.20.5
+FROM alpine:3.21.3