diff --git a/pyproject.toml b/pyproject.toml
index 62aaf26d2b..d81acb9aca 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -84,7 +84,7 @@ dependencies = [
   "pycryptodome==3.20.*",
   "pypdf==3.9.*",
   "python-bidi==0.4.*",  # Support for Arabic in reportlab
-  "python-dateutil==2.8.*",
+  "python-dateutil==2.9.*",
   "pytz",
   "pytz-deprecation-shim==0.1.*",
   "pyuca",