diff --git a/README.md b/README.md
index a012cc2..1f52652 100644
--- a/README.md
+++ b/README.md
@@ -86,6 +86,7 @@ Parameter | Description
 `logoPosition` | The position of the logo.
 `style` | The style like "flat" or "social".
 `cacheSeconds` | The cache lifetime in seconds (must be greater than 300).
+`updateIfChanged` | Default is `false`. If `true` will update the gist only if content changed.
 
 ### Color Range Parameters (optional)
 
diff --git a/action.yml b/action.yml
index 9d02190..44bb212 100644
--- a/action.yml
+++ b/action.yml
@@ -19,6 +19,10 @@ inputs:
   message:
     description: 'The right text of the badge'
     required: true
+  updateIfChanged:
+    description: 'If true will update the gist only if content changed'
+    default: 'false'
+    required: false
   labelColor:
     description: 'The left color of the badge'
     required: false