diff --git a/src/backend/pyproject.toml b/src/backend/pyproject.toml
index 60cf64389..e9421d9d9 100644
--- a/src/backend/pyproject.toml
+++ b/src/backend/pyproject.toml
@@ -57,6 +57,7 @@ dependencies = [
     "WeasyPrint>=60.2",
     "whitenoise==6.7.0",
     "mozilla-django-oidc==4.0.1",
+    "y-py==0.6.2"
 ]
 
 [project.urls]