diff --git a/requirements-dev.txt b/requirements-dev.txt
index f9d54b2..c192746 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -137,7 +137,7 @@ typing-extensions==4.15.0
     #   typing-inspection
 typing-inspection==0.4.2
     # via pydantic
-tzdata==2025.2
+tzdata==2025.3
     # via pyUSPTO (pyproject.toml)
 urllib3==2.6.1
     # via