diff --git a/prow/config/plugins.yaml b/prow/config/plugins.yaml
index 4ebce441..13130469 100644
--- a/prow/config/plugins.yaml
+++ b/prow/config/plugins.yaml
@@ -46,6 +46,7 @@ plugins:
     - label
     - lgtm
     - lifecycle
+    - milestoneapplier
     - pony
     - retitle
     - shrug