diff --git a/package.json b/package.json
index f02a16e..0db6b17 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
     "autod": "*",
     "contributors": "*",
     "cov": "*",
-    "istanbul": "*",
+    "istanbul": "0.4.2",
     "jshint": "*",
     "mocha": "*",
     "should": "3.1.3"
@@ -34,7 +34,10 @@
     "email": "fengmk2@gmail.com"
   },
   "keywords": [
-    "readall", "read", "stream", "stream2"
+    "readall",
+    "read",
+    "stream",
+    "stream2"
   ],
   "engines": {
     "node": ">= 0.12.0"