diff --git a/tox.ini b/tox.ini
index a8cf8a0..c738738 100644
--- a/tox.ini
+++ b/tox.ini
@@ -17,9 +17,9 @@ deps =
   django111: django>=1.11, <1.12
   django22: django>=2.2, <2.3
   https://git.entrouvert.org/passerelle.git/snapshot/passerelle-main.tar.gz
-  psycopg2-binary
+  psycopg2-binary<2.9
   httmock
-  psycopg2
+  psycopg2<2.9
   pytest
   pytest-cov
   pytest-django