diff --git a/requirements.txt b/requirements.txt
index b08114c..065e5ae 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ uvloop==0.16.0
 pytojcamp>0.0.1
 pymatgen==2022.0.6
 func-timeout==4.3.5
-python-dotenv==0.19.0
+python-dotenv==0.21.1
 motor==2.5.1
 pymongo==3.11.3
 diskcache==5.2.1