diff --git a/emmet-core/requirements.txt b/emmet-core/requirements.txt
index 92b9086f00..0381d46a7d 100644
--- a/emmet-core/requirements.txt
+++ b/emmet-core/requirements.txt
@@ -3,5 +3,5 @@ monty==v2021.3.3
 pydantic==1.8.1
 pybtex==0.24.0
 typing-extensions==3.7.4.3
-pymongo==3.11.3
+pymongo==3.11.4
 maggma==0.26.0