1 files changed, 1 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini

index 367cc2ccf2..7ba6f6339f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -161,7 +161,7 @@ basepython = python3.7
 skip_install = True
 deps =
     {[base]deps}
-    mypy
+    mypy==0.730
     mypy-zope
 env =
     MYPYPATH = stubs/