diff --git a/pyproject.toml b/pyproject.toml
index a9b2157f..f52ffc89 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ dependencies = [
     "sqlalchemy>=2.0.0",
     "alembic>=1.13.0",
     "python-slugify>=8.0.0",
-    "python-dateutil>=2.8.0",  # Required for partition management
+    "python-dateutil>=2.9.0.post0",  # Required for partition management
     "aiofiles>=23.0.0",
     "httpx>=0.25.0",
     "faster-whisper>=1.0.0",
diff --git a/requirements.txt b/requirements.txt
index 22c16448..f7884e79 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ databases[postgresql]>=0.8.0
 psycopg2-binary>=2.9.0
 sqlalchemy>=2.0.0
 python-slugify>=8.0.0
-python-dateutil>=2.8.0
+python-dateutil>=2.9.0.post0
 aiofiles>=23.0.0
 httpx>=0.25.0