diff --git a/requirements.txt b/requirements.txt
index f74b149..98e550e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,5 +3,5 @@ Flask>2
 Flask-PyMongo==2.1.0
 pandas
 passlib==1.7.1
-pymongo==3.6.1
+pymongo==4.6.3
 pyzmq