diff --git a/Raspberry-Pi.md b/Raspberry-Pi.md
index e7c4259..91d5c4d 100644
--- a/Raspberry-Pi.md
+++ b/Raspberry-Pi.md
@@ -3,7 +3,7 @@ This page is NOT only about Raspberry Pi. This page IS about install without con
 WeKan only requires:
 - WeKan bundle .zip file of Javascript etc for that CPU. Only difference per CPU is that fibers package is compiled for that CPU.
 - Node.js binary, version number is at https://wekan.github.io Download section, like https://nodejs.org/dist/latest-v12.x/
-- MongoDB, version number is at https://wekan.github.io Download section, like 3.x-4.x https://www.mongodb.com/try/download/community
+- MongoDB, version number is at https://wekan.github.io Download section, like 3.x-4.x https://www.mongodb.com/try/download/community or Percona MongoDB https://www.percona.com/software/mongodb/feature-comparison Download at https://www.percona.com/downloads/percona-server-mongodb-LATEST/
 - some way to start Wekan, like any of:
   - bash script: [start-wekan.sh](https://raw.githubusercontent.com/wekan/wekan/master/start-wekan.sh)
   - cmd.exe script: [start-wekan.bat](https://raw.githubusercontent.com/wekan/wekan/master/start-wekan.bat)