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does it work if you pass it in using the providers list instead?
```{ providers: [clusterProvider] }```
Certmanager looks to be a Provider that wraps the kubernetes provider, which would explain why you can't pass in the kubernetes provider directly

<https://github.com/pulumi/pulumi-kubernetes-cert-manager/issues/1|https://github.com/pulumi/pulumi-kubernetes-cert-manager/issues/1>

Might need to make sure everything is up to date

might be better to use `helm.Release` or `helm.Chart` directly instead, though you'll lose the type checking