diff --git a/build/package.json b/build/package.json
index 07c86718e32f29bfa6142196f02eed6a8fa26e78..dd2161b3df2762773a7bc427f2259c1b065481f0 100644
--- a/build/package.json
+++ b/build/package.json
@@ -1,13 +1,14 @@
 {
-    "name": "echarts-builder",
-    "description": "ECharts Builder",
-    "version": "0.0.1",
-    "repository": "https://github.com/ecomfe/echarts",
-    "dependencies" : {
-        "uglify-js" : "2.5.0",
-        "escodegen" : "1.7.0",
-        "esprima" : "2.7.0",
-        "estraverse" : "4.1.1",
-        "etpl" : "3.0.1"
-    }
-}
\ No newline at end of file
+  "name": "echarts-builder",
+  "description": "ECharts Builder",
+  "version": "0.0.1",
+  "repository": "https://github.com/ecomfe/echarts",
+  "dependencies": {
+    "uglify-js": "2.5.0",
+    "escodegen": "1.7.0",
+    "esprima": "2.7.0",
+    "estraverse": "4.1.1",
+    "etpl": "3.0.1",
+    "optimist": "^0.6.1"
+  }
+}