diff --git a/setup.cfg b/setup.cfg
index 24c3b70..84a5ffe 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -28,7 +28,7 @@ packages =
     zope-stubs
 package_dir = =src
 install_requires =
-    mypy==0.930
+    mypy==0.931
     zope.interface
     zope.schema
 include_package_data = True