diff --git a/requirements.txt b/requirements.txt
index 2d9b350..e41aa51 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ greenlet==3.0.3
 idna==3.6
 Mastodon.py==1.8.1
 pillow==10.2.0
-python-dateutil==2.8.2
+python-dateutil==2.9.0
 python-magic==0.4.27
 PyYAML==6.0.1
 requests==2.31.0