diff --git a/action.yml b/action.yml
index 5b597f9..cb68728 100644
--- a/action.yml
+++ b/action.yml
@@ -15,7 +15,7 @@ inputs:
 runs:
   using: 'docker'
   image: 'Dockerfile'
-  entrypoint: 'sh -c'
+  entrypoint: "sh -c"
   env:
     OPALOPC_LICENSE_KEY: ${{ inputs.license-key }}
   args: