diff --git a/tox.ini b/tox.ini
index 60398bea05ae327fd1ce6a727d2b1dd3b7168e6a..f17af8390c0c2c6f538283d3ce9417a73d78b978 100644
--- a/tox.ini
+++ b/tox.ini
@@ -31,7 +31,7 @@ commands =
 extras =
   testing
 deps =
-  mypy==0.920
+  mypy==0.942
 commands =
   mypy swh