--- a/debian/control	Tue Jun 11 10:04:11 2019 +0200
+++ b/debian/control	Thu Jun 13 13:19:44 2019 +0800
@@ -22,7 +22,7 @@
 Depends:
  ${python:Depends},
  ${misc:Depends},
- mercurial (>= 4.1),
+ mercurial (>= 4.5),
 Description: evolve extension for Mercurial
  This package provides the experimental "evolve" extension for the Mercurial
  DVCS.