diff --git a/requirements.txt b/requirements.txt
index 69143550f..c13a8feb9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-pymatgen==2020.8.3
+pymatgen==2020.8.13
 pandas==1.1.0
 tensorflow==2.3.0
 numpy==1.19.1