diff --git a/requirements.txt b/requirements.txt
index f42c7b9..2da3a18 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ greenlet==3.0.3
 idna==3.6
 lingua-language-detector==2.0.2
 Mastodon.py==1.8.1
-python-dateutil==2.8.2
+python-dateutil==2.9.0
 python-magic==0.4.27
 PyYAML==6.0.1
 requests==2.31.0