pip-compile -P pyyaml
to be consistent with its name on
@@ -92,7 +92,7 @@ python-neutronclient==6.2.0
python-novaclient==8.0.0
python-openstackclient==3.9.0
pytz==2017.2 # via babel, oslo.serialization, oslo.utils
-pyyaml==5.1
+PyYAML==5.1.2
raven==6.0.0
requests==2.22.0
requestsexceptions==1.2.0 # via os-client-config
