Update pip from 8.1.2 to 9.0.0 (#22)

pyup.io bot · asvetlov · commit d7bb0f8f8e26 · 2016-11-02T20:59:46.000+02:00
diff --git a/requirements-ci.txt b/requirements-ci.txt
@@ -1,5 +1,5 @@
 -r requirements-wheel.txt
-pip==8.1.2
+pip==9.0.0
 flake8==3.0.4
 pyflakes>=1.0.0
 coverage==4.2
