diff --git a/requirements.txt b/requirements.txt
index 5ac6e01..ccf3474 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 Flask==1.0
 Flask-SQLAlchemy==2.2
 Flask-PyMongo==2.2.0
-pymongo==3.0
+pymongo==4.6.3
 Jinja2==2.11.3
 MarkupSafe==0.23
 SQLAlchemy==1.3.0