Also run tests with PyPy 3.6.
@@ -18,6 +18,7 @@ matrix:
before_script: TOX_ENV=py3.7,py3.7-dist,py3.7-dist-wheel
- python: 3.8
- python: pypy3.5
+ - python: pypy3.6
- env: ENV=checks
python: 3.7
before_script: TOX_ENV=checks
