diff --git a/ippisite/requirements-core.txt b/ippisite/requirements-core.txt
index e3e684826587ecc2bcf5e7f3660430b80e1c6679..85d10b9d56a5a1d2628244a3d4a488250598b497 100644
--- a/ippisite/requirements-core.txt
+++ b/ippisite/requirements-core.txt
@@ -27,4 +27,4 @@ git+https://gitlab.pasteur.fr/hmenager/django-diu.git#egg=django_diu
 # openbabel is not installed from pip for now
 #openbabel
 django-crispy-forms
-celery
\ No newline at end of file
+celery==4.4.7