diff --git a/npm-install/action.yml b/npm-install/action.yml
index 7c24a59..63f3881 100644
--- a/npm-install/action.yml
+++ b/npm-install/action.yml
@@ -8,7 +8,7 @@ inputs:
   package-manager:
     description: '包管理器类型 (npm, pnpm, yarn)'
     required: false
-    default: 'npm'
+    default: 'pnpm'
   
   pnpm-version:
     description: 'pnpm 版本（当 package-manager=pnpm 时生效）'