How to update Postman on ChromeOS

Hi All,

I’m using a chromebook and have manually installed Postman by folloiwng the instructions here.

Upon trying to update from Postman v7.29.0 to Postman v7.29.1. When I look at the Dev Tools for the error I get this:
“EACCES: permission denied, open ‘/opt/Postman/Postman-1595829807281.tar.gz’”

I’ve installed Postman on /opt/Postman and have my desktop app located at /usr/share/applications/Postman.desktop

/usr/share/applications/Postman.desktop permissions:
-rw-r--r-- 1 root root 185 Jul 23 11:04 /usr/share/applications/Postman.desktop

/opt/Postman permissions:
lrwxrwxrwx 1 999 999 13 Jul 22 21:21 Postman -> ./app/Postman
drwxr-xr-x 1 999 999 496 Jul 22 21:21 app

I know it’s a permission issue, but can’t work out where to fix it.

Thanks for any help.