--- a/hgext3rd/topic/__init__.py	Thu Mar 22 10:05:50 2018 +0100
+++ b/hgext3rd/topic/__init__.py	Thu Mar 22 10:25:01 2018 +0100
@@ -179,7 +179,7 @@
 __version__ = '0.9.0.dev'
 
 testedwith = '4.2.3 4.3.3 4.4.2 4.5.2'
-minimumhgversion = '4.1'
+minimumhgversion = '4.2'
 buglink = 'https://bz.mercurial-scm.org/'
 
 if util.safehasattr(registrar, 'configitem'):