diff --git a/setup.py b/setup.py
index 7044479..11c5ec8 100644
--- a/setup.py
+++ b/setup.py
@@ -40,7 +40,7 @@ setup(
     extras_require={
         "test": [
             "tox>=3.15.2",
-            "mysqlclient>=1.4.6",
+            "mysqlclient>=1.4.6,<2",
             "psycopg2-binary>=2.8.5,<2.9",
             "django_add_default_value>=0.4.0",
             'mock>=3.0.5;python_version<"3.3"',