diff --git a/requirements.txt b/requirements.txt
index bac6f40..31a3e83 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ lxml==4.5.0
 PasteDeploy==2.1.0
 plaster==1.0
 plaster-pastedeploy==0.7
-pymongo==3.10.1
+pymongo==4.6.3
 pyoai==2.5.0
 pyramid==1.10.4
 requests==2.23.0