diff --git a/karma.conf.js b/karma.conf.js
index b80efa5..f6460c6 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -2,7 +2,7 @@
 // Generated on Wed Jun 18 2014 09:33:44 GMT+0100 (BST)
 
 module.exports = function(config) {
-  var browsers = ['PhantomJS', 'Firefox'];
+  var browsers = ['Firefox'];
 
   if (!process.TRAVIS) {
     browsers.push('Chrome');
diff --git a/package.json b/package.json
index 7d46b91..602d022 100644
--- a/package.json
+++ b/package.json
@@ -26,12 +26,12 @@
   },
   "homepage": "https://github.com/ahmednuaman/javascript-tests",
   "dependencies": {
-    "karma": "^0.12.32",
-    "karma-jasmine": "^0.3.5",
-    "karma-phantomjs-launcher": "^0.1.4"
+    "karma-jasmine": "^4.0.1",
+    "karma-phantomjs-launcher": "^1.0.4",
+    "karma": "^6.3.2"
   },
   "devDependencies": {
-    "karma-chrome-launcher": "^0.1.12",
-    "karma-firefox-launcher": "^0.1.6"
+    "karma-chrome-launcher": "^3.1.0",
+    "karma-firefox-launcher": "^2.1.0"
   }
 }
diff --git a/test/clone-object.js b/test/clone-object.js
index 86ec647..596efc7 100644
--- a/test/clone-object.js
+++ b/test/clone-object.js
@@ -1,8 +1,8 @@
 describe('clone object', function () {
   it('should clone an object', function () {
     var expected = {name: 'Ahmed', age: 27, skills: ['cycling', 'walking', 'eating']},
-        obj = {};
-
+        obj = {...expected};
+    	
     expect(obj).toEqual(expected);
     expect(obj).not.toBe(expected);
   });
diff --git a/test/flatten-array.js b/test/flatten-array.js
index c7f0632..e6daaf8 100644
--- a/test/flatten-array.js
+++ b/test/flatten-array.js
@@ -2,7 +2,21 @@ describe('flatten array', function () {
   it('should flatten an array', function () {
     var arr = [1, 2, [1, 2, [3, 4, 5, [1]]], 2, [2]],
         expected = [1, 1, 1, 2, 2, 2, 2, 3, 4, 5];
-
+        
+        const flattenArray = (arr) => {
+          someNewArray = arr.reduce((acc, item)=>{
+              if(Array.isArray(item)){
+                  acc = acc.concat(flattenArray(item))
+              }
+              else{
+                  acc = [...acc, item]
+              }
+              return acc
+          },[])
+          return someNewArray.sort()
+      }
+      
+    arr = flattenArray(arr)
     expect(arr).toEqual(expected);
   });
 });
\ No newline at end of file
diff --git a/test/scoping.js b/test/scoping.js
index 557c54a..92c32e3 100644
--- a/test/scoping.js
+++ b/test/scoping.js
@@ -16,7 +16,7 @@ describe('scoping', function () {
     };
 
     Module.prototype.req = function() {
-      return request(this.method);
+      return request(this.method.bind(this));
     };
 
     expect(mod.req()).toBe('bar');