diff --git a/pyproject.toml b/pyproject.toml
index 226fd9a396..cfc58899ee 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -97,7 +97,7 @@ strict = [
     "mp-api==0.42.1",
     "numpy",
     "phonopy==2.27.0",
-    "pydantic-settings==2.3.4",
+    "pydantic-settings==2.5.2",
     "pydantic==2.9.0",
     "pymatgen-analysis-defects==2024.7.19",
     "pymatgen==2024.6.10",