--- a/buildout.cfg	Wed Jun 12 12:12:25 2019 +0200
+++ b/buildout.cfg	Wed Jun 12 12:28:15 2019 +0200
@@ -11,9 +11,12 @@
 
 allow-hosts =
     bitbucket.org
+    pypi.org
+    github.com
+    download.ztfy.org
     *.python.org
+    *.pythonhosted.org
     *.sourceforge.net
-    github.com
 
 versions = versions