diff --git a/test-requirements.txt b/test-requirements.txt
index d3b07b7d8a..8d19719062 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -6,5 +6,5 @@ stestr>=1.0.0 # Apache-2.0
 testtools>=0.9.32
 PyMySQL
 psycopg2-binary
-mypy
+mypy<0.650
 beautifulsoup4