diff --git a/pyproject.toml b/pyproject.toml
index b46b146afa..85db7a513b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -107,7 +107,7 @@ strict = [
     "mp-api==0.45.7",
     "numpy",
     "phonopy==2.30.1",
-    "pydantic-settings==2.9.1",
+    "pydantic-settings==2.10.1",
     "pydantic==2.11.7",
     "pymatgen-analysis-defects==2025.1.18",
     "pymatgen==2025.2.18",