We are using confluence 5.1.2. Changed page title in database but it's not reflected on front end.

Hello,

We are trying to change title of page with the help of below query:

UPDATE confluence.content SET TITLE = REPLACE(TITLE,'&','x26') WHERE TITLE LIKE '%&%' AND content.spaceid IN (SELECT SPACEID FROM spaces where spacename ='Look Out’);

Above query updated rows and restarted confluence but pages title does not get changed on front end side.

Backend side page title is change so can you please help me?