--- a/debian/control	Fri Jun 07 02:22:05 2019 +0200
+++ b/debian/control	Tue Jun 11 10:04:11 2019 +0200
@@ -7,7 +7,7 @@
  Pierre-Yves David <pierre-yves.david@logilab.fr>,
 Standards-Version: 3.9.3
 Build-Depends:
- mercurial (>= 4.1),
+ mercurial (>= 4.5),
  python,
  debhelper (>= 8),
  python-sphinx (>= 1.0.8),