diff --git a/README.md b/README.md
index 9c0f1bb..dba4a18 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,8 @@ installed before command execution.
 
 By default, only files under the directory returned by `brew --prefix`
 will be archived.  If the `brew` command installs files in other
-directories, specify them with the `path` parameter.
+directories, specify them with the `path` parameter.  You may need to
+add `/Applications` and/or `/Library` directories.
 
 Output is same as
 [`@actions/cache`](https://github.com/actions/cache).
diff --git a/action.yml b/action.yml
index 86bd92a..7de653a 100644
--- a/action.yml
+++ b/action.yml
@@ -10,7 +10,6 @@ inputs:
   key:     { required: false, type: string }
   path:    { required: false, type: string }
   cache:   { required: false, type: string, default: yes }
-  sudo:    { required: false, type: boolean, default: false }
   verbose: { required: false, type: boolean, default: false }
 
 outputs:
@@ -43,5 +42,4 @@ runs:
         path:    ${{ steps.setup.outputs.prefix }} ${{ inputs.path }}
         key:     ${{ steps.setup.outputs.key }}
         cache:   ${{ inputs.cache }}
-        sudo:    ${{ inputs.sudo }}
         verbose: ${{ inputs.verbose }}