diff --git a/config/prow/plugins.yaml b/config/prow/plugins.yaml
index adcf89b..234537b 100644
--- a/config/prow/plugins.yaml
+++ b/config/prow/plugins.yaml
@@ -11,6 +11,7 @@ plugins:
       - hold
       - label
       - lgtm
+      - mergecommitblocker
       - trigger
       - verify-owners
       - wip