diff --git a/.github/actions/run_tests/action.yaml b/.github/actions/run_tests/action.yaml
index 15819d89..3f40f2fd 100644
--- a/.github/actions/run_tests/action.yaml
+++ b/.github/actions/run_tests/action.yaml
@@ -4,7 +4,6 @@ inputs:
   cache-string:
     description: 'Cache string secret. Change to bust the cache'
     required: true
-shell: bash
 runs:
   using: "composite"
   steps: