diff --git a/.github/workflows/update-main-version.yml b/.github/workflows/update-main-version.yml
index 565e316..bd85938 100644
--- a/.github/workflows/update-main-version.yml
+++ b/.github/workflows/update-main-version.yml
@@ -18,6 +18,9 @@ on:
 jobs:
   tag:
     runs-on: ubuntu-latest
+    env:
+      TARGET: ${{ github.event.inputs.target }}
+      MAIN_VERSION: ${{ github.event.inputs.major_version }}
     steps:
     # Note this update workflow can also be used as a rollback tool.
     # For that reason, it's best to pin `actions/checkout` to a known, stable version
@@ -30,6 +33,6 @@ jobs:
         git config user.name "github-actions[bot]"
         git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
     - name: Tag new target
-      run: git tag -f ${{ github.event.inputs.major_version }} ${{ github.event.inputs.target }}
+      run: git tag -f "$MAIN_VERSION" "$TARGET"
     - name: Push new tag
-      run: git push origin ${{ github.event.inputs.major_version }} --force
+      run: git push origin "$MAIN_VERSION" --force