Merge pull request #4 from techjacker/dependabot/pip/pyyaml-5.1

Bump pyyaml from 3.12 to 5.1

Author: techjacker

requirements.txt

@@ -29,7 +29,7 @@ pycodestyle==2.4.0
 Pygments==2.2.0
 pytest==3.5.0
 pytest-cov==2.5.1
-PyYAML==3.12
+PyYAML==5.1
 requests==2.18.4
 six==1.11.0
 urllib3==1.22