diff --git a/requirements.txt b/requirements.txt
index 1cd8f83..745d8c1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-pymatgen==2023.11.12
+pymatgen==2023.12.18
 emmet-core==0.72.7
 pydantic==2.4.2
 pydantic-core==2.10.1