diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 6037fce4c3..04739e0ab7 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -39,12 +39,12 @@ jobs:
            git config --local user.name "GitHub Action"
           
       - name: mkdocs deploy latest
-        if: contains(github.ref, "refs/heads/")
+        if: contains(github.ref, 'refs/heads/')
         run: | 
            mike deploy --push --force --update-aliases latest
         
       - name: mkdocs deploy new release / tag
-        if: contains(github.ref, "refs/tags/v")
+        if: contains(github.ref, 'refs/tags/v')
         run: | 
            mike deploy --push --force --update-aliases ${{ github.ref }} latest
            mike set-default --force --push latest