# `AWS-UpdateCloudFormationStack`
<a name="automation-aws-updatecloudformationstack"></a>

 **Description** 

Update an AWS CloudFormation stack by using an CloudFormation template stored in an Amazon S3 bucket.

 [Run this Automation (console)](https://console.aws.amazon.com/systems-manager/automation/execute/AWS-UpdateCloudFormationStack) 

**Document type**

Automation

**Owner**

Amazon

**Platforms**

Linux, macOS, Windows

**Parameters**
+ AutomationAssumeRole

  Type: String

  Description: (Optional) The Amazon Resource Name (ARN) of the AWS Identity and Access Management (IAM) role that allows Systems Manager Automation to perform the actions on your behalf. If no role is specified, Systems Manager Automation uses the permissions of the user that starts this runbook.
+ LambdaAssumeRole

  Type: String

  Description: (Required) The ARN of the role assumed by Lambda
+ StackNameOrId

  Type: String

  Description: (Required) Name or Unique ID of the CloudFormation stack to be updated
+ TemplateUrl

  Type: String

   Description: (Required) S3 bucket location that contains the updated CloudFormation template (e.g. `https://s3.amazonaws.com/amzn-s3-demo-bucket2/updated.template)`