diff --git a/README.md b/README.md
index e0ee7e4..ca53b5e 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,12 @@ It was tested with the following operating systems:
 
 ## Usage
 
+### Command Line
+
+Run the script ```scan``` in the bin folder.
+
+### Code
+
     const scanner = require('node-wifi-scanner');
 
     scanner.scan((err, networks) => {
diff --git a/index.js b/index.js
index 8a05da1..6609a9e 100644
--- a/index.js
+++ b/index.js
@@ -3,7 +3,6 @@
  * Created by kc on 04.04.16.
  */
 
-const fs      = require('fs');
 const exec    = require('child_process').exec;
 const async   = require('async');
 const _       = require('lodash');
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..8173abe
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,1640 @@
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+}
diff --git a/package.json b/package.json
index 3ef207b..d170744 100644
--- a/package.json
+++ b/package.json
@@ -35,12 +35,12 @@
     "test": "mocha test"
   },
   "dependencies": {
-    "async": "2.1.4",
+    "async": "2.6.2",
     "lodash": "^4.17.11"
   },
   "devDependencies": {
     "grunt": "^1.0.3",
-    "grunt-bump": "0.7.0",
+    "grunt-bump": "0.8.0",
     "mocha": "^6.0.2"
   }
 }