diff --git a/tox.ini b/tox.ini
index 2c4e763..b1617ae 100644
--- a/tox.ini
+++ b/tox.ini
@@ -19,6 +19,7 @@ extras = md
 
 [testenv:mypy]
 basepython = python3
+skip_install = true
 deps =
     mypy
     types-bleach