diff --git a/pyproject.toml b/pyproject.toml
index 093c6cb..a7dc63d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [build-system]
 requires = [
     "holidays>=0.92",
-    "pydantic==2.12.5",
+    "pydantic==2.13.3",
     "setuptools==82.0.1",
     "wheel==0.46.3",
 ]
@@ -37,7 +37,7 @@ classifiers = [
 ]
 dependencies = [
     "holidays>=0.92",
-    "pydantic==2.12.5",
+    "pydantic==2.13.3",
 ]
 
 [tool.setuptools]
diff --git a/requirements.txt b/requirements.txt
index 2814a80..b6df98b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
 holidays>=0.92
-pydantic==2.12.5
+pydantic==2.13.3
diff --git a/setup.py b/setup.py
index a9ee7f8..4ce3662 100644
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,7 @@
     ),
     install_requires = [
         "holidays>=0.92",
-        "pydantic==2.12.5",
+        "pydantic==2.13.3",
     ],
     classifiers = [
         "Development Status :: 1 - Planning",