diff --git a/tox.ini b/tox.ini
index 137d6bb..4c64def 100644
--- a/tox.ini
+++ b/tox.ini
@@ -35,7 +35,7 @@ commands =
 extras =
   testing
 deps =
-  mypy==0.920
+  mypy==0.942
 commands =
   mypy swh