--- a/debian/control	Mon Mar 20 09:40:24 2017 +0100
+++ b/debian/control	Mon Mar 20 16:51:41 2017 +0100
@@ -20,6 +20,7 @@
  python-tz,
  python-rql (>= 0.34.0),
  python-yams (>= 0.44.0),
+ python-yams (<< 0.45.0),
  python-lxml,
  python-setuptools,
  python-pyramid,
@@ -43,6 +44,7 @@
  python-logilab-common (>= 1.2.2),
  python-logilab-database (>= 1.15.0),
  python-yams (>= 0.44.0),
+ python-yams (<< 0.45.0),
  python-rql (>= 0.34.0),
  python-unittest2 (>= 0.7.0),
  python-lxml,