diff --git a/crawlers.py b/crawlers.py
index d95aa2aa4..de61358f7 100644
--- a/crawlers.py
+++ b/crawlers.py
@@ -16,7 +16,7 @@ from blocking import update_blocked_cache
 from blocking import is_blocked_domain
 
 default_user_agent_blocks = [
-    'fedilist'
+    'fedilist', 'ncsc scan'
 ]