diff --git a/requirements.txt b/requirements.txt
index 878b29d..d0361f2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,3 +2,4 @@ fastapi==0.88.0
 uvicorn[standard]==0.20.0
 python-jose==3.3.0
 pycryptodome==3.16.0
+python-dateutil==2.8.2