--- a/debian/control	Wed Nov 21 11:05:51 2012 +0100
+++ b/debian/control	Wed Nov 21 11:14:20 2012 +0100
@@ -8,7 +8,9 @@
 Standards-Version: 3.9.3
 Build-Depends:
  mercurial (>=2.4~),
+ mercurial (<<2.5),
  mercurial-common (>=2.4~),
+ mercurial-common (<<2.5),
  python,
  debhelper (>= 8),
  python-sphinx (>= 1.0.8),
@@ -23,6 +25,7 @@
  ${python:Depends},
  ${misc:Depends},
  mercurial (>= 2.4),
+ mercurial (<<2.5),
 Description: evolve extension for Mercurial
  This package provides the experimental "evolve" extension for the Mercurial
  DVCS.