diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3dfd01b..07f8d60 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -34,6 +34,7 @@ jobs:
 
       - name: Install action dependencies
         if: (! startsWith(github.ref, 'v'))
+        shell: bash
         run: npm install --production || true
 
       - run: brew install gnupg