diff --git a/requirements.txt b/requirements.txt
index 4aaae11e..ad7021b5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ GitPython==3.1.50
 xmltodict==1.0.4
 lxml==6.1.1
 pytz==2026.2
-tzlocal==5.3.1
+tzlocal==5.4.3
 markdown2==2.5.5
 flask-migrate==4.1.0
 email_validator