diff --git a/README.md b/README.md
index 5cc875b..cbff526 100644
--- a/README.md
+++ b/README.md
@@ -23,14 +23,16 @@ qrdecoder.decode(path,
 
 ```javascript
 {
-	ZXingLocation: "/path",
-	try_harder: false,
+  ZXingLocation: "/path",
+  try_harder: false,
   multi: false
 }
 ```
 
 ## ZXing
-In this repository are two jars (javase.jar and core.jar). Both of these belong to https://github.com/zxing/zxing and were retrieved from http://repo1.maven.org/maven2/com/google/zxing/
+In this repository are three jars: javase-3.3.0.jar, core-3.3.0.jar and jcommander-1.60.jar.  
+The two first of these belong to https://github.com/zxing/zxing and were retrieved from http://repo1.maven.org/maven2/com/google/zxing/  
+The last one is a dependency of ZXing which belong to https://github.com/cbeust/jcommander and was retrieved from https://repo1.maven.org/maven2/com/beust/jcommander/  
 
 ZXing included only for ease of use.
 
diff --git a/lib/main.js b/lib/main.js
index 4233ba0..12ce13e 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -13,7 +13,11 @@ module.exports = function (options) {
   }
 
   if(defaults.ZXingVersion == null) {
-    defaults.ZXingVersion = "-3.1.0"
+    defaults.ZXingVersion = "3.3.0"
+  }
+
+  if(defaults.JCommanderVersion == null) {
+    defaults.JCommanderVersion = "1.60"
   }
 
   var commandLineOptions = " ";
@@ -25,7 +29,7 @@ module.exports = function (options) {
   }
   return {
     decode: function(filePath, cb) {
-      exec('java -cp '+path.join(defaults.ZXingLocation, 'javase', 'javase'+defaults.ZXingVersion+'.jar')+cpSeparator+path.join(defaults.ZXingLocation, 'core', 'core'+defaults.ZXingVersion+'.jar')+' com.google.zxing.client.j2se.CommandLineRunner'+commandLineOptions+''+filePath,
+      exec('java -cp '+path.join(defaults.ZXingLocation, 'javase', 'javase-'+defaults.ZXingVersion+'.jar')+cpSeparator+path.join(defaults.ZXingLocation, 'lib', 'jcommander-'+defaults.JCommanderVersion+'.jar')+cpSeparator+path.join(defaults.ZXingLocation, 'core', 'core-'+defaults.ZXingVersion+'.jar')+' com.google.zxing.client.j2se.CommandLineRunner'+commandLineOptions+''+filePath,
         function(err, stdout, stderr){
           var qrcode = "";
           var errorCache = null;
diff --git a/zxing/core/core-3.1.0.jar b/zxing/core/core-3.1.0.jar
deleted file mode 100644
index 63c228a..0000000
Binary files a/zxing/core/core-3.1.0.jar and /dev/null differ
diff --git a/zxing/core/core-3.3.0.jar b/zxing/core/core-3.3.0.jar
new file mode 100644
index 0000000..94f7406
Binary files /dev/null and b/zxing/core/core-3.3.0.jar differ
diff --git a/zxing/javase/javase-3.1.0.jar b/zxing/javase/javase-3.1.0.jar
deleted file mode 100644
index 2647da2..0000000
Binary files a/zxing/javase/javase-3.1.0.jar and /dev/null differ
diff --git a/zxing/javase/javase-3.3.0.jar b/zxing/javase/javase-3.3.0.jar
new file mode 100644
index 0000000..359ca5f
Binary files /dev/null and b/zxing/javase/javase-3.3.0.jar differ
diff --git a/zxing/lib/jcommander-1.60.jar b/zxing/lib/jcommander-1.60.jar
new file mode 100644
index 0000000..514fa0f
Binary files /dev/null and b/zxing/lib/jcommander-1.60.jar differ