diff --git a/requirements.txt b/requirements.txt
index d9f83ab..500e1ff 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 pyyaml
 enum34
-pymongo==3.7.1
+pymongo==4.9
 simplejson
 Flask > 0.12.3
 werkzeug