diff --git a/action.yaml b/action.yaml
index 347f706..c1140b8 100644
--- a/action.yaml
+++ b/action.yaml
@@ -4,7 +4,7 @@ author: 'Jeffery'
 inputs:
   is_beta:
     description: '是否為 beta 版本'
-    default: "false"
+    default: false
 outputs:
   version:
     description: '計算出的版本號'