diff -r ec4924ea8bc6 -r 04ce84b7b9d1 hgext3rd/topic/__init__.py
--- a/hgext3rd/topic/__init__.py	Thu Aug 11 22:50:58 2016 +0200
+++ b/hgext3rd/topic/__init__.py	Thu Aug 11 22:52:49 2016 +0200
@@ -53,7 +53,7 @@
               'topic.stack.state.unstable': 'red',
              }
 
-testedwith = '3.7'
+testedwith = '3.9'
 
 def _contexttopic(self):
     return self.extra().get(constants.extrakey, '')