diff --git a/pyproject.toml b/pyproject.toml
index 21deaaa..e7dda6c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,7 +25,7 @@ dev = [
     "poethepoet",
     "pre-commit",
     "build",
-    "pydantic>=2.13.3",
+    "pydantic>=2.13.4",
     "mypy>=1.19.1",
     "vulture>=2.16",
     "websockets>=15.0.1",