diff -r fa838ff79f03 -r d9e47bf8c17f setup.py
--- a/setup.py	Mon May 28 17:45:07 2018 +0200
+++ b/setup.py	Tue May 29 09:46:18 2018 +0200
@@ -62,7 +62,7 @@
           # -*- Extra requirements: -*-
           'fanstatic',
           'pyams_file',
-          'pyams_utils',
+          'pyams_utils >= 0.1.15',
           'pyams_viewlet',
           'pyramid',
           'z3c.form',