diff --git a/setup.cfg b/setup.cfg
index 0cf9549..e2dcebb 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -29,8 +29,6 @@ testing =
 	pytest-black >= 0.3.7
 	pytest-cov
 	pytest-mypy
-	# workaround for python/mypy#8627
-	mypy@git+https://github.com/python/mypy
 
 	# local
 
diff --git a/tox.ini b/tox.ini
index ba5857a..97cc426 100644
--- a/tox.ini
+++ b/tox.ini
@@ -7,6 +7,8 @@ tox_pip_extensions_ext_venv_update = true
 
 [testenv]
 deps =
+	# workaround for python/mypy#8627
+	mypy@git+https://github.com/python/mypy
 commands =
 	pytest {posargs}
 usedevelop = True