diff --git a/.github/workflows/tests_latest.yml b/.github/workflows/tests_latest.yml
index cbac7bce749..72962c13f3f 100644
--- a/.github/workflows/tests_latest.yml
+++ b/.github/workflows/tests_latest.yml
@@ -61,19 +61,9 @@ jobs:
           source .venv/bin/activate
           make test
 
-      # This job checks out the release branch, which predates the local Slack action, so check
-      # the action out from the branch running the workflow. Keep this step on `always()`: it must
-      # never be skipped while the Slack step below runs, or the action cannot be resolved.
-      - name: Check out the Slack action
-        if: always()
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
-        with:
-          path: slack-action
-          sparse-checkout: .github/actions
-
       - name: Post to Slack
         if: always()
-        uses: ./slack-action/.github/actions/post-slack
+        uses: ./.github/actions/post-slack
         with:
           slack_channel: ${{ env.CI_SLACK_CHANNEL }}
           title: Tests latest TRL release with dev dependencies