The [upgrade guide](https://cdktn.io/docs/release/upgrade-guide-v0-22#project-impact) specified "@cdktn/provider-aws": "^20.0.0" but that threw the below error and switching to ^23.3.0 fixed it. From slack thread https://cdk-dev.slack.com/archives/C017XMM5L7N/p1773841243461909?thread_ts=1773798336.332689&cid=C017XMM5L7N