diff --git a/openpype/settings/defaults/project_settings/slack.json b/openpype/settings/defaults/project_settings/slack.json
index d77b8c2208..c156fed08e 100644
--- a/openpype/settings/defaults/project_settings/slack.json
+++ b/openpype/settings/defaults/project_settings/slack.json
@@ -11,6 +11,7 @@
                     "task_types": [],
                     "tasks": [],
                     "subsets": [],
+                    "review_upload_limit": 50.0,
                     "channel_messages": []
                 }
             ]