diff --git a/tox.ini b/tox.ini
index a1265d81..3b4c1ff7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -13,6 +13,7 @@ deps=pytest>4.6
      sqla13: pytest<7
      sqla13: {[tox]SQLA_REPO}@rel_1_3#egg=sqlalchemy
      sqla14: {[tox]SQLA_REPO}@rel_1_4#egg=sqlalchemy
+     sqla20: {[tox]SQLA_REPO}@rel_2_0#egg=sqlalchemy
      sqlamain: {[tox]SQLA_REPO}#egg=sqlalchemy
      postgresql: psycopg2>=2.7
      mysql: mysqlclient>=1.4.0