--- a/debian/control	Fri Oct 18 10:17:53 2019 +0200
+++ b/debian/control	Fri Oct 11 16:53:52 2019 +0200
@@ -9,6 +9,7 @@
 Build-Depends:
  mercurial (>= 4.5),
  python,
+ python3,
  debhelper (>= 10),
  dh-python,
  python-sphinx (>= 1.0.8),
@@ -17,12 +18,14 @@
  wget,
  sphinx-common,
 X-Python-Version: >= 2.7
+X-Python3-Version: >= 3.6
 Homepage: https://www.mercurial-scm.org/doc/evolution/
 
 Package: mercurial-evolve
 Architecture: all
 Depends:
  ${python:Depends},
+ ${python3:Depends},
  ${misc:Depends},
  ${sphinxdoc:Depends},
  mercurial (>= 4.5),