diff --git a/requirements.txt b/requirements.txt
index 485644f..d6bb502 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,3 +9,4 @@ pytest-mypy-plugins==1.9.3
 psycopg2-binary
 -e ./django_stubs_ext
 -e .
+mypy==0.931
diff --git a/setup.py b/setup.py
index 91a770c..75fd483 100644
--- a/setup.py
+++ b/setup.py
@@ -21,7 +21,7 @@ with open("README.md") as f:
     readme = f.read()
 
 dependencies = [
-    "mypy>=0.931",
+    "mypy>=0.930,<0.940",
     "django",
     "django-stubs-ext>=0.3.0",
     "tomli",