Upgrade PyYAML
@ -34,7 +34,7 @@ pyOpenSSL==18.0.0
python-dateutil==2.7.5
python-editor==1.0.3
pytz==2018.7
PyYAML==3.13
PyYAML==4.2b4
redis==3.0.1
six==1.11.0
SQLAlchemy==1.2.13