--- a/debian/control	Tue Jan 21 13:12:36 2014 +0100
+++ b/debian/control	Tue Jan 21 14:00:26 2014 +0100
@@ -45,7 +45,6 @@
 Architecture: all
 Conflicts:
  cubicweb-multisources
- yams (>= 0.39)
 Replaces: cubicweb-multisources
 Provides: cubicweb-multisources
 Depends:
@@ -153,6 +152,7 @@
  python-logilab-mtconverter (>= 0.8.0),
  python-logilab-common (>= 0.59.0),
  python-yams (>= 0.37.0),
+ python-yams (<< 0.39),
  python-rql (>= 0.31.2),
  python-lxml
 Recommends: