[requires.io] dependency update

requires · requires · commit d46843d58f4c · 2018-07-04T23:48:47.000+01:00
diff --git a/test_requirements.txt b/test_requirements.txt
@@ -1,4 +1,4 @@
-pytest==3.6.2
+pytest==3.6.3
 pytest-cov==2.5.1
 pytest-xdist==1.22.2
 hypothesis
