diff --git a/ippisite/requirements-core.txt b/ippisite/requirements-core.txt
index 584aac22008865d9c5899c5865f31a901642e1e6..55193bd48c711aaa98dbf916d4262b1c2cddc56e 100644
--- a/ippisite/requirements-core.txt
+++ b/ippisite/requirements-core.txt
@@ -25,7 +25,7 @@ scipy==1.5.2
 matplotlib==2.2.3 #Matplotlib 3.0+ does not support Python 2.x, 3.0, 3.1, 3.2, 3.3, or 3.4.
 seaborn
 # postgres driver
-psycopg2-binary
+psycopg2-binary==2.8 #>=2.9 is not supported by django 2.2 https://github.com/psycopg/psycopg2/issues/1293
 git+https://gitlab.pasteur.fr/hmenager/django-diu.git#egg=django_diu
 # openbabel is not installed from pip for now
 #openbabel