openshift cartridge Redis version

[bbbio13]

I followed the instructions to install nodebb on OpenShift, but the version of Redis is too old (2.6) with the command in step 6 (add-cartridge). How to upgrading the version of Redis on OpenShift?

error: Your Redis version is not new enough to support NodeBB, please upgrade Redis to v2.8.9 or higher.

I tried this cartridge without success