marshmallow==2.19.2
pyyaml==5.1
sphinx==2.1.0
sphinx-issues==1.2.0
sphinx-rtd-theme==0.4.3

marshmallow==2.19.2
pyyaml==5.1.1
sphinx==2.1.0
sphinx-issues==1.2.0
sphinx-rtd-theme==0.4.3

Bump pyyaml from 5.1 to 5.1.1
Bump pyyaml from 5.1 to 5.1.1

Bumps [pyyaml](https://github.com/yaml/pyyaml) from 5.1 to 5.1.1.
- [Release notes](https://github.com/yaml/pyyaml/releases)
- [Changelog](https://github.com/yaml/pyyaml/blob/master/CHANGES)
- [Commits](https://github.com/yaml/pyyaml/compare/5.1...5.1.1)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>