diff --git a/.gitignore b/.gitignore
index 50b2690..2aed84c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
+.idea
 .DS_Store
 node_modules
 examples/flatiron/node_modules
-examples/express/node_modules
\ No newline at end of file
+examples/express/node_modules
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..df6ceba
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,293 @@
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+}
diff --git a/package.json b/package.json
index a4bde9b..b4efa89 100644
--- a/package.json
+++ b/package.json
@@ -7,9 +7,18 @@
     "type": "git",
     "url": "https://hugorodrigues@github.com/hugorodrigues/rpc.js.git"
   },
-  "keywords": ["webservice", "api", "rpc", "JSON-RPC", "JSON", "framework", "flatiron", "express"],
+  "keywords": [
+    "webservice",
+    "api",
+    "rpc",
+    "JSON-RPC",
+    "JSON",
+    "framework",
+    "flatiron",
+    "express"
+  ],
   "main": "./rpc",
   "dependencies": {
-    "socket.io": "0.9.14"
-  }  
-}
\ No newline at end of file
+    "socket.io": "~2.0.4"
+  }
+}