[requires.io] dependency update

requires · requires · commit 0454ae804bff · 2016-03-18T21:33:42.000Z
diff --git a/test_requirements.txt b/test_requirements.txt
@@ -1,4 +1,4 @@
-pytest==2.9.0
+pytest==2.9.1
 pytest-xdist==1.14
 pytest-cov==2.2.1
 hypothesis==3.1.0
