diff --git a/README.md b/README.md
index 94a86df..d09aa95 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ jobs:
 
 ### Optional
 
-Nothing.
+- `needs`: [needs context](https://docs.github.com/en/actions/learn-github-actions/contexts#needs-context)
 
 ## Environment Variables
 
diff --git a/action.yaml b/action.yaml
index ce7c89f..c487a36 100644
--- a/action.yaml
+++ b/action.yaml
@@ -8,10 +8,6 @@ inputs:
   github_token:
     description: GitHub Access Token to update a commit status
     required: true
-  start_workflow:
-    description: Update a commit status
-    required: false
-    default: false
   needs:
     description: needs context.
     required: false
@@ -22,5 +18,4 @@ runs:
       with:
         github_token: ${{inputs.github_token}}
         state: ${{inputs.state}}
-        start_workflow: ${{inputs.start_workflow}}
         needs: ${{inputs.needs}}