--- DistUpgrade/DistUpgradeController.py.orig	2019-04-11 11:17:40.438077820 -0700
+++ DistUpgrade/DistUpgradeController.py	2019-04-11 11:18:18.937861480 -0700
@@ -500,7 +500,10 @@ class DistUpgradeController(object):
             return True
         # check if the entry points to something we can download
         uri = "%s/dists/%s/Release" % (entry.uri, entry.dist)
-        return url_downloadable(uri, logging.debug)
+        if 'universe' in entry.comps:
+            return False
+        else:
+            return url_downloadable(uri, logging.debug)
 
     def rewriteSourcesList(self, mirror_check=True):
         if mirror_check: