diff --git a/backend/requirements.txt b/backend/requirements.txt
index 9abfd9a..fd522a4 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -1,7 +1,7 @@
 fastapi==0.135.2
 uvicorn[standard]==0.42.0
 psycopg2-binary==2.9.11
-python-dateutil==2.9.0
+python-dateutil==2.9.0.post0
 pandas==2.3.3
 pyarrow==16.1.0
 duckdb==0.10.3