Update pyyaml from 3.13 to 5.1

pyup-bot · pyup-bot · commit c420d87a6953 · 2019-03-18T20:19:09.000+01:00
diff --git a/requirements/pip.txt b/requirements/pip.txt
@@ -21,7 +21,7 @@ jsonfield==2.0.2
 requests==2.21.0
 requests-toolbelt==0.9.1
 slumber==0.7.1
-pyyaml==3.13
+pyyaml==5.1
 Pygments==2.3.1
 
 # Basic tools
