diff --git a/.github/workflows/publish-charts.yaml b/.github/workflows/publish-charts.yaml
index f4219b8..41a92f7 100644
--- a/.github/workflows/publish-charts.yaml
+++ b/.github/workflows/publish-charts.yaml
@@ -17,6 +17,7 @@ jobs:
       - name: Check out the repository
         uses: actions/checkout@v4
         with:
+          ref: ${{ inputs.ref || github.ref }}
           # This is important for the semver action to work correctly
           # when determining the number of commits since the last tag
           fetch-depth: 0
@@ -30,4 +31,4 @@ jobs:
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           version: ${{ steps.semver.outputs.version }}
-          app-version: ${{ steps.semver.outputs.short-sha }}
\ No newline at end of file
+          app-version: ${{ steps.semver.outputs.short-sha }}