# This workflow is using a deprecated stack. Change your build stack, or your builds will not work after Mar 13

**URL:** <https://discuss.bitrise.io/t/this-workflow-is-using-a-deprecated-stack-change-your-build-stack-or-your-builds-will-not-work-after-mar-13/22154>\
**Category:** Question & Answer\
**Tags:** stack\
**Created:** [February 6, 2023, 1:49pm UTC](https://discuss.bitrise.io/t/this-workflow-is-using-a-deprecated-stack-change-your-build-stack-or-your-builds-will-not-work-after-mar-13/22154 "2023-02-06T13:49:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![christoph\_eck\_milk](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.bitrise.io/christoph_eck_milk/32/2228_2.png) [@christoph\_eck\_milk](https://discuss.bitrise.io/u/christoph_eck_milk)\
**Post date:** [February 6, 2023, 1:49pm UTC](https://discuss.bitrise.io/t/this-workflow-is-using-a-deprecated-stack-change-your-build-stack-or-your-builds-will-not-work-after-mar-13/22154/1 "2023-02-06T13:49:33Z")

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I just saw the message " This workflow is using a deprecated stack. Change your build stack, or your builds will not work after Mar 13"

What does that really mean? I dont know what I have to change.

The machine and stack is

- Xcode 14.1.x, on macOS 12.5 (Monterey), Gen2 Standard

so it is not that old.

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<div class="post-metadata">

**Author:** ![christoph\_eck\_milk](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.bitrise.io/christoph_eck_milk/32/2228_2.png) [@christoph\_eck\_milk](https://discuss.bitrise.io/u/christoph_eck_milk)\
**Post date:** [February 6, 2023, 3:43pm UTC](https://discuss.bitrise.io/t/this-workflow-is-using-a-deprecated-stack-change-your-build-stack-or-your-builds-will-not-work-after-mar-13/22154/2 "2023-02-06T15:43:00Z")

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OK, I see the issue now. In the stack view it is written for this stack:

> The latest available `Xcode 14.1.x` installed on macOS 12.0 (Monterey) - Deprecated: will be removed after 2023.03.13