diff --git a/tox.ini b/tox.ini
index 1bdbfde..1407090 100644
--- a/tox.ini
+++ b/tox.ini
@@ -25,7 +25,7 @@ deps =
     dj111: django<2.0
     dj20: django<2.1
     djlast: django
-    pg: psycopg2-binary
+    pg: psycopg2-binary<2.9
     pytest
     pytest-mock
     pytest-django