diff --git a/requirements.txt b/requirements.txt
index cd0da5b..f559151 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -38,9 +38,9 @@ pluggy==1.5.0
     # via pytest
 pre-commit==3.8.0
     # via -r requirements.in
-pydantic==2.9.0
+pydantic==2.9.1
     # via -r requirements.in
-pydantic-core==2.23.2
+pydantic-core==2.23.3
     # via pydantic
 pygments==2.18.0
     # via pdbpp
@@ -64,8 +64,6 @@ typing-extensions==4.12.1
     # via
     #   pydantic
     #   pydantic-core
-tzdata==2024.1
-    # via pydantic
 urllib3==2.2.2
     # via requests
 virtualenv==20.26.2