diff --git a/requirements.txt b/requirements.txt
index 98283e7..36cc3cb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -271,7 +271,7 @@ traitlets==5.14.3
     #   matplotlib-inline
 typing-extensions==4.12.2
     # via mypy
-tzdata==2024.2
+tzdata==2025.1
     # via icalendar
 uritemplate==4.1.1
     # via coreapi