They've shipped new monitoring and backup agents

https://docs.cloudmanager.mongodb.com/release-notes/backup-agent/
https://docs.cloudmanager.mongodb.com/release-notes/monitoring-agent/

playbooks/roles/mongo_mms/defaults/main.yml

@@ -5,8 +5,8 @@ pkg_format: "deb"
 
 agents:
   - agent: mongodb-mms-monitoring-agent
-    version: "5.0.0.309-1"
+    version:  "5.1.0.323-1"
     config: "/etc/mongodb-mms/monitoring-agent.config"
   - agent: mongodb-mms-backup-agent
-    version: "4.3.0.384-1"
+    version: "4.4.1.402-1"
     config: "/etc/mongodb-mms/backup-agent.config"