diff --git a/pyproject.toml b/pyproject.toml
index 9eb680b..302b945 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,7 +41,7 @@ test_packaging = [
     "twine==6.2.0"
 ]
 tests = [
-    "pydantic==2.12.3",
+    "pydantic==2.12.4",
     "pytest==9.0.0"
 ]
 type_check = [