diff --git a/pyproject.toml b/pyproject.toml
index f421d3a3..5722b3f7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,7 +35,7 @@ classifiers = [
 ]
 dependencies = [
     "numpy==1.26.0",
-    "pymatgen==2023.9.25",
+    "pymatgen==2023.10.4",
     "mp-api",
     "ase",
     "tqdm",