diff --git a/.github/workflows/install-smoke.yml b/.github/workflows/install-smoke.yml
index 9dc5d1fb460..36f64d2d6ad 100644
--- a/.github/workflows/install-smoke.yml
+++ b/.github/workflows/install-smoke.yml
@@ -19,9 +19,15 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
         with:
-          fetch-depth: 50
+          fetch-depth: 1
           fetch-tags: false
 
+      - name: Ensure docs-scope base commit
+        uses: ./.github/actions/ensure-base-commit
+        with:
+          base-sha: ${{ github.event_name == 'push' && github.event.before || github.event.pull_request.base.sha }}
+          fetch-ref: ${{ github.event_name == 'push' && github.ref_name || github.event.pull_request.base.ref }}
+
       - name: Detect docs-only changes
         id: check
         uses: ./.github/actions/detect-docs-changes