diff --git a/src/test/resources/org/jvnet/hudson/plugins/platformlabeler/alpine/3.21.2/Dockerfile b/src/test/resources/org/jvnet/hudson/plugins/platformlabeler/alpine/3.21.2/Dockerfile
index 172a5bf8..e9d7a0d8 100644
--- a/src/test/resources/org/jvnet/hudson/plugins/platformlabeler/alpine/3.21.2/Dockerfile
+++ b/src/test/resources/org/jvnet/hudson/plugins/platformlabeler/alpine/3.21.2/Dockerfile
@@ -1 +1 @@
-FROM alpine:3.21.2
+FROM alpine:3.21.3