diff --git a/app/controllers/api/v1/webhooks/social_inbox_controller.rb b/app/controllers/api/v1/webhooks/social_inbox_controller.rb
index 464a0ffe..548781fa 100644
--- a/app/controllers/api/v1/webhooks/social_inbox_controller.rb
+++ b/app/controllers/api/v1/webhooks/social_inbox_controller.rb
@@ -53,7 +53,7 @@ module Api
             instance.present?
             object.present?
             activity.present?
-            activity_pub.approve!
+            activity_pub.approve! if activity_pub.may_approve?
           end
 
           head :accepted
@@ -69,7 +69,7 @@ module Api
             instance.present?
             object.present?
             activity.present?
-            activity_pub.reject!
+            activity_pub.reject! if activity_pub.may_reject?
           end
 
           head :accepted