diff --git a/.github/workflows/formatting_check.yml b/.github/workflows/formatting_check.yml
index 79ccb4b..deb44d5 100644
--- a/.github/workflows/formatting_check.yml
+++ b/.github/workflows/formatting_check.yml
@@ -6,7 +6,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Install dependencies
-        run: gem install mdl
+        run: sudo gem install mdl
       - uses: actions/checkout@v3
       - uses: paolorechia/pox@v1.0.1
         with: