diff --git a/tox.ini b/tox.ini
index 28a82db..7db3239 100644
--- a/tox.ini
+++ b/tox.ini
@@ -12,7 +12,7 @@ deps =
   django22: django>=2.2,<2.3
   git+https://git.entrouvert.org/passerelle.git
   django-webtest
-  psycopg2-binary
+  psycopg2-binary<2.9
   pytest
   pytest-django
   black: pre-commit