https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/protect-stack-resources.html#protect-stack-resources-modifying To get current stack policy, run the following command: aws cloudformation get-stack-policy --region AWS_REGION --stack-name STACK_NAME | jq '.StackPolicyBody' | sed 's/"{/{/g' | sed 's/}"/}/g' | sed 's/\\n/ /g' | sed 's/\\"/"/g' | jq '.' To allow further modification of a stack policy, run the following command: aws cloudformation set-stack-policy --region AWS_REGION --stack-name STACK_NAME ...