Update wheel from 0.30.0 to 0.31.0

diff --git a/requirements.txt b/requirements.txt
index 275e44141d0577d831f5d6a8c90ed37167017d52..996ea5a37b6946c7deaa9849064970cdf32b3e84 100644 (file)
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,4 +3,4 @@ coverage==4.4.2
 pytest==3.3.0
 pytest-cov==2.5.1
 freezegun==0.3.9
-wheel==0.30.0
+wheel==0.31.0