1 files changed, 2 insertions, 4 deletions
diff --git a/tox.ini b/tox.ini
index 0e130ae..ee8f50f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,10 +4,8 @@ requires = setuptools>=36
 isolated_build = True
 
 [testenv]
-deps =
-    coverage<4.0
-    pyyaml
-    pytidylib
+extras = testing
+deps = pytidylib
 commands = coverage run --source=markdown -m unittest discover {toxinidir}/tests
            coverage report --show-missing