diff -r 0c645f09d96a -r 9c0fac5028c0 __pkginfo__.py
--- a/__pkginfo__.py	Tue Feb 16 17:16:45 2016 +0100
+++ b/__pkginfo__.py	Mon Jan 04 10:43:35 2016 +0100
@@ -42,7 +42,7 @@
     'logilab-common': '>= 0.63.1',
     'logilab-mtconverter': '>= 0.8.0',
     'rql': '>= 0.31.2, < 0.34',
-    'yams': '>= 0.40.0',
+    'yams': '>= 0.40.0, < 0.42',
     #gettext                    # for xgettext, msgcat, etc...
     # web dependencies
     'lxml': '',