diff --git a/bitbake/lib/toaster/orm/models.py b/bitbake/lib/toaster/orm/models.py
index cb3c385c60..e9285d6438 100644
--- a/bitbake/lib/toaster/orm/models.py
+++ b/bitbake/lib/toaster/orm/models.py
@@ -1584,3 +1584,4 @@ def invalidate_cache(**kwargs):
 
 django.db.models.signals.post_save.connect(invalidate_cache)
 django.db.models.signals.post_delete.connect(invalidate_cache)
+django.db.models.signals.m2m_changed.connect(invalidate_cache)