diff --git a/backend/requirements.txt b/backend/requirements.txt
index 99f7983..ab909ab 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -8,3 +8,4 @@ pydantic==2.7.1
 bcrypt==4.1.3
 slowapi==0.1.9
 psycopg2-binary==2.9.9
+python-dateutil==2.9.0