diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 8bd3769..5be4a47 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -8,7 +8,7 @@ on:
 jobs:
   pr-pull:
     if: contains(github.event.pull_request.labels.*.name, 'pr-pull')
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
     permissions:
       contents: write
       packages: none
@@ -26,7 +26,7 @@ jobs:
           HOMEBREW_GITHUB_PACKAGES_TOKEN: ${{ github.token }}
           HOMEBREW_GITHUB_PACKAGES_USER: ${{ github.actor }}
           PULL_REQUEST: ${{ github.event.pull_request.number }}
-        run: brew pr-pull --debug --tap=$GITHUB_REPOSITORY $PULL_REQUEST
+        run: brew pr-pull --debug --tap="${GITHUB_REPOSITORY}" "${PULL_REQUEST}"
 
       - name: Push commits
         uses: Homebrew/actions/git-try-push@master
@@ -38,4 +38,4 @@ jobs:
         if: github.event.pull_request.head.repo.fork == false
         env:
           BRANCH: ${{ github.event.pull_request.head.ref }}
-        run: git push --delete origin $BRANCH
+        run: git push --delete origin "${BRANCH}"