[requires.io] dependency update

requires · requires · commit 7fbe7dd97f45 · 2018-05-23T13:14:26.000+01:00
diff --git a/test_requirements.txt b/test_requirements.txt
@@ -1,4 +1,4 @@
-pytest==3.5.1
+pytest==3.6.0
 pytest-cov==2.5.1
 pytest-xdist==1.22.2
 hypothesis
