diff --git a/setup.py b/setup.py
index 84ca6d36..a58b074c 100644
--- a/setup.py
+++ b/setup.py
@@ -65,7 +65,7 @@
         'dev': [
             'django-composed-configuration[dev]',
             'django-debug-toolbar',
-            'django-s3-file-field[minio]',
+            'django-s3-file-field[minio]<1',
             'ipython',
             'openpyxl',
             'tox',
diff --git a/tox.ini b/tox.ini
index 0baa1219..12157d1b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -25,7 +25,7 @@ skip_install = false
 usedevelop = true
 deps =
     mypy<0.920
-    django-stubs
+    django-stubs<2
     djangorestframework-stubs
 commands =
     mypy {posargs} setup.py shapeworks_cloud