`review-deploy` fails with `Error: UPGRADE FAILED: incompatible versions client[v2.14.3] server[v2.8.2]`

Job #354760161 failed for 2749a3d5:

141 UPGRADE FAILED
142 Error: incompatible versions client[v2.14.3] server[v2.8.2]
143 Error: UPGRADE FAILED: incompatible versions client[v2.14.3] server[v2.8.2]

Quoting @caalberts:

I’ve seen this before when I didn’t include tiller-namespace in helm cli.

The tiller on kube-system namespace is 2.8.2 (edited)