Cluster manifest don't add matchLabels to the Persistent Volume Claim

[PaulaPousa]

Hi There,

I am trying to add a label to the pvc to bound it to a specific static pv. But when I apply the manifest I get the following error:
error validating data: ValidationError(postgresql.spec.volume): unknown field "matchLabels" in do.zalan.acid.v1.postgresql.spec.volume;

I am using postgres-operator version 1.8.0, If anyone knows what is going on I would appreciate a response.

Thanks,
Paula