[requires.io] dependency update

requires · requires · commit bf524c6007dc · 2017-11-27T23:48:29.000Z
diff --git a/test_requirements.txt b/test_requirements.txt
@@ -1,4 +1,4 @@
-pytest==3.2.5
+pytest==3.3.0
 pytest-cov==2.5.1
 pytest-xdist==1.20.1
 hypothesis
