diff --git a/package.json b/package.json
index e4c4544..1652222 100644
--- a/package.json
+++ b/package.json
@@ -9,14 +9,14 @@
   ],
   "dependencies": {
     "koa-is-json": "1",
-    "streaming-json-stringify": "1"
+    "streaming-json-stringify": "3.1.0"
   },
   "devDependencies": {
     "istanbul-harmony": "0",
-    "mocha": "1",
-    "should": "3",
-    "koa": "0",
-    "supertest": "0"
+    "mocha": "2.3.4",
+    "should": "8.0.2",
+    "koa": "1.1.2",
+    "supertest": "1.1.0"
   },
   "license": "MIT",
   "scripts": {
@@ -24,5 +24,7 @@
     "test-cov": "NODE_ENV=test node --harmony-generators ./node_modules/.bin/istanbul cover ./node_modules/.bin/_mocha -- --require should",
     "test-travis": "NODE_ENV=test node --harmony-generators ./node_modules/.bin/istanbul cover ./node_modules/.bin/_mocha --report lcovonly -- --require should"
   },
-  "files": ["index.js"]
+  "files": [
+    "index.js"
+  ]
 }