diff --git a/requirements-dev.txt b/requirements-dev.txt
index 79b2f3f..b8286d6 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -52,7 +52,7 @@ tomli==2.0.1
 
 tomlkit==0.13.2
 
-types-python-dateutil==2.9.0.20240821
+types-python-dateutil==2.9.0.20240906
 
 typing-extensions==4.12.2