diff --git a/.github/actions/setup-pnpm/action.yml b/.github/actions/setup-pnpm/action.yml
index 2339033a4..744dfba87 100644
--- a/.github/actions/setup-pnpm/action.yml
+++ b/.github/actions/setup-pnpm/action.yml
@@ -10,6 +10,7 @@ runs:
   steps:
     - name: Install ffmpeg
       if: runner.os == 'Linux'
+      shell: 'bash'
       run: |
         sudo apt-get update
         sudo apt-get install -y ffmpeg