diff --git a/.github/actions/setup-build-env/action.yml b/.github/actions/setup-build-env/action.yml
index e1b550e5c..f61d6565e 100644
--- a/.github/actions/setup-build-env/action.yml
+++ b/.github/actions/setup-build-env/action.yml
@@ -12,6 +12,7 @@ runs:
 
     - name: Install macOS Dependencies
       if: runner.os == 'macOS'
+      shell: bash
       run: |
         brew install bison flex gawk libffi pkg-config bash