diff -r 320f3e1f3e65 -r 228fcc7327a1 src/pyams_skin.egg-info/requires.txt
--- a/src/pyams_skin.egg-info/requires.txt	Mon Jun 11 15:37:26 2018 +0200
+++ b/src/pyams_skin.egg-info/requires.txt	Mon Jun 11 16:02:58 2018 +0200
@@ -1,7 +1,7 @@
 setuptools
 fanstatic
 pyams_file
-pyams_utils
+pyams_utils>=0.1.15
 pyams_viewlet
 pyramid
 z3c.form