diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index b9f9f44..373cbfc 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,6 +13,7 @@ jobs:
     if: github.ref_name != 'main'
     steps:
       - uses: actions/checkout@v4
+        with: { fetch-depth: 0 } # super-linter needs full git history
       - uses: github/super-linter/slim@v6
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}