diff --git a/python/applications/UCIS4EQ/requirements.txt b/python/applications/UCIS4EQ/requirements.txt
index f6367233..68bc2a57 100644
--- a/python/applications/UCIS4EQ/requirements.txt
+++ b/python/applications/UCIS4EQ/requirements.txt
@@ -1,5 +1,5 @@
 # RESTful server for event treatment
-pymongo==3.6.1
+pymongo==4.6.3
 flask==0.12.2
 
 # FDSN-WebService Listener