diff --git a/tox.ini b/tox.ini
index 09a8578..19a5a32 100644
--- a/tox.ini
+++ b/tox.ini
@@ -14,6 +14,7 @@ setenv =
 deps =
   http://git.entrouvert.org/passerelle.git/snapshot/passerelle-master.tar.gz
   httmock
+  psycopg2
   pytest
   pytest-cov
   pytest-django