diff --git a/tildes/requirements-to-freeze.txt b/tildes/requirements-to-freeze.txt
index 79a097a..65035db 100644
--- a/tildes/requirements-to-freeze.txt
+++ b/tildes/requirements-to-freeze.txt
@@ -10,7 +10,7 @@ freezegun
 gunicorn
 html5lib
 ipython
-mypy
+mypy==0.670  # 0.700 includes incorrect bleach stubs
 mypy-extensions
 Pillow
 prometheus-client