---
title: CloudFormation update for AWS Metric Streams: Upgrade AWS Lambda runtime to Python 3.13
source: https://docs.newrelic.com/docs/release-notes/infrastructure-release-notes/cloud-integration-release-notes/updated-aws-cloudformation-templates
---

### Update

-   We've released an update to the AWS CloudFormation template for our [Metric Streams integration](https://docs.newrelic.com/docs/infrastructure/amazon-integrations/aws-integration-for-metrics/via-cloudformation-cwms/). This update resolves a critical issue that could prevent the stack from being updated and use modern AWS Lambda python runtimes.

-   To apply the fix to your existing integration, please follow the steps below to update your CloudFormation stack:

    1.  **Navigate to CloudFormation**: Log in to your AWS Management Console and go to the **CloudFormation** service.

    2.  **Select Your Stack**: Find and select your New Relic Metric Streams stack (it's often named `NewRelic-Metric-Streams-*`), then click **Update Stack** dropdown. From the options, select **Make a direct update**. For more information, see the [AWS documentation on directly updating stacks](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-direct.html).

    3.  **Replace Template**: On the update screen, you **must** select **Replace current template**.

        **NOTE**: Do not use the "Use existing template" option, as it will not apply the necessary fixes.

    4.  **Provide the New Template URL**: Under the _Specify template_ section, choose the **Amazon S3 URL** option and paste the following link:

        `https://nr-downloads-main.s3.amazonaws.com/cloud_integrations/aws/cloudformation/newrelic-cloudformation-mstreams.yml`

    5.  **Confirm and Update**: Click **Next** through the parameter and stack options pages. On the final review page, scroll to the bottom, check the box to **acknowledge that AWS CloudFormation might create IAM resources**, and click **Update stack**.

    You can monitor the progress in the **Events** tab. The update is complete when the stack status changes to `UPDATE_COMPLETE`.