diff --git a/actions/install-latest-npm/action.yml b/actions/install-latest-npm/action.yml
index 13f789906..d89f400b8 100644
--- a/actions/install-latest-npm/action.yml
+++ b/actions/install-latest-npm/action.yml
@@ -4,5 +4,6 @@ runs:
   using: composite
   steps:
     - name: 'Install latest npm to support provenance publishing'
+      shell: bash
       run: |
-        npm install -g npm
\ No newline at end of file
+        npm install -g npm