diff --git a/composer.json b/composer.json
index ea6d98fb..f4f30594 100644
--- a/composer.json
+++ b/composer.json
@@ -8,7 +8,7 @@
         }
     ],
     "require": {
-        "luketowers/purifier": "~3.0"
+        "mews/purifier": "^3.2"
     },
     "require-dev": {
         "illuminate/cache": "~5.1.20|5.2.*|5.3.*",
diff --git a/database/migrations/2016_07_29_171118_create_chatter_categories_table.php b/database/migrations/2016_07_29_171118_create_chatter_categories_table.php
index 0323235e..e3d3207b 100755
--- a/database/migrations/2016_07_29_171118_create_chatter_categories_table.php
+++ b/database/migrations/2016_07_29_171118_create_chatter_categories_table.php
@@ -8,8 +8,8 @@ class CreateChatterCategoriesTable extends Migration
     public function up()
     {
         Schema::create('chatter_categories', function (Blueprint $table) {
-            $table->increments('id');
-            $table->integer('parent_id')->unsigned()->nullable();
+            $table->id('id');
+            $table->bigInteger('parent_id')->unsigned()->nullable();
             $table->integer('order')->default(1);
             $table->string('name');
             $table->string('color', 20);
diff --git a/database/migrations/2016_07_29_171118_create_chatter_discussion_table.php b/database/migrations/2016_07_29_171118_create_chatter_discussion_table.php
index d6415300..e7ea364f 100755
--- a/database/migrations/2016_07_29_171118_create_chatter_discussion_table.php
+++ b/database/migrations/2016_07_29_171118_create_chatter_discussion_table.php
@@ -8,10 +8,10 @@ class CreateChatterDiscussionTable extends Migration
     public function up()
     {
         Schema::create('chatter_discussion', function (Blueprint $table) {
-            $table->increments('id');
-            $table->integer('chatter_category_id')->unsigned()->default('1');
+            $table->id('id');
+            $table->bigInteger('chatter_category_id')->unsigned()->default('1');
             $table->string('title');
-            $table->integer('user_id')->unsigned();
+            $table->bigInteger('user_id')->unsigned();
             $table->boolean('sticky')->default(false);
             $table->integer('views')->unsigned()->default('0');
             $table->boolean('answered')->default(0);
diff --git a/database/migrations/2016_07_29_171118_create_chatter_post_table.php b/database/migrations/2016_07_29_171118_create_chatter_post_table.php
index cb943d04..e18c1957 100755
--- a/database/migrations/2016_07_29_171118_create_chatter_post_table.php
+++ b/database/migrations/2016_07_29_171118_create_chatter_post_table.php
@@ -8,9 +8,9 @@ class CreateChatterPostTable extends Migration
     public function up()
     {
         Schema::create('chatter_post', function (Blueprint $table) {
-            $table->increments('id');
-            $table->integer('chatter_discussion_id')->unsigned();
-            $table->integer('user_id')->unsigned();
+            $table->id('id');
+            $table->bigInteger('chatter_discussion_id')->unsigned();
+            $table->bigInteger('user_id')->unsigned();
             $table->text('body');
             $table->timestamps();
         });
diff --git a/database/migrations/2017_01_16_121747_create_chatter_user_discussion_pivot_table.php b/database/migrations/2017_01_16_121747_create_chatter_user_discussion_pivot_table.php
index e8a4f553..fc4df72c 100644
--- a/database/migrations/2017_01_16_121747_create_chatter_user_discussion_pivot_table.php
+++ b/database/migrations/2017_01_16_121747_create_chatter_user_discussion_pivot_table.php
@@ -13,9 +13,9 @@ class CreateChatterUserDiscussionPivotTable extends Migration
     public function up()
     {
         Schema::create('chatter_user_discussion', function (Blueprint $table) {
-            $table->integer('user_id')->unsigned()->index();
+            $table->bigInteger('user_id')->unsigned()->index();
             $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
-            $table->integer('discussion_id')->unsigned()->index();
+            $table->bigInteger('discussion_id')->unsigned()->index();
             $table->foreign('discussion_id')->references('id')->on('chatter_discussion')->onDelete('cascade');
             $table->primary(['user_id', 'discussion_id']);
         });
diff --git a/src/ChatterServiceProvider.php b/src/ChatterServiceProvider.php
index e6394ac4..48f7f15b 100644
--- a/src/ChatterServiceProvider.php
+++ b/src/ChatterServiceProvider.php
@@ -3,6 +3,7 @@
 namespace DevDojo\Chatter;
 
 use Illuminate\Support\ServiceProvider;
+use Mews\Purifier\PurifierServiceProvider;
 
 class ChatterServiceProvider extends ServiceProvider
 {
@@ -48,13 +49,13 @@ public function register()
         /*
          * Register the service provider for the dependency.
          */
-        $this->app->register(\LukeTowers\Purifier\PurifierServiceProvider::class);
+        $this->app->register(PurifierServiceProvider::class);
 
         /*
          * Create aliases for the dependency.
          */
         $loader = \Illuminate\Foundation\AliasLoader::getInstance();
-        $loader->alias('Purifier', 'LukeTowers\Purifier\Facades\Purifier');
+        $loader->alias('Purifier', 'Mews\Purifier\Facades\Purifier');
 
         $this->loadViewsFrom(__DIR__.'/Views', 'chatter');
     }
diff --git a/src/Controllers/ChatterDiscussionController.php b/src/Controllers/ChatterDiscussionController.php
index 4a3be3e3..9b9ccef0 100644
--- a/src/Controllers/ChatterDiscussionController.php
+++ b/src/Controllers/ChatterDiscussionController.php
@@ -75,9 +75,9 @@ public function store(Request $request)
 			'body_content.min' => trans('chatter::alert.danger.reason.content_min'),
 			'chatter_category_id.required' => trans('chatter::alert.danger.reason.category_required'),
 		]);
-        
 
-        Event::fire(new ChatterBeforeNewDiscussion($request, $validator));
+
+        Event::dispatch(new ChatterBeforeNewDiscussion($request, $validator));
         if (function_exists('chatter_before_new_discussion')) {
             chatter_before_new_discussion($request, $validator);
         }
@@ -149,7 +149,7 @@ public function store(Request $request)
         $post = Models::post()->create($new_post);
 
         if ($post->id) {
-            Event::fire(new ChatterAfterNewDiscussion($request, $discussion, $post));
+            Event::dispatch(new ChatterAfterNewDiscussion($request, $discussion, $post));
             if (function_exists('chatter_after_new_discussion')) {
                 chatter_after_new_discussion($request);
             }
@@ -217,7 +217,7 @@ public function show($category, $slug = null)
         }
 
         $discussion->increment('views');
-        
+
         return view('chatter::discussion', compact('discussion', 'posts', 'chatter_editor'));
     }
 
diff --git a/src/Controllers/ChatterPostController.php b/src/Controllers/ChatterPostController.php
index 96aa1ba0..733740ff 100644
--- a/src/Controllers/ChatterPostController.php
+++ b/src/Controllers/ChatterPostController.php
@@ -56,7 +56,7 @@ public function store(Request $request)
 			'body.min' => trans('chatter::alert.danger.reason.content_min'),
 		]);
 
-        Event::fire(new ChatterBeforeNewResponse($request, $validator));
+        Event::dispatch(new ChatterBeforeNewResponse($request, $validator));
         if (function_exists('chatter_before_new_response')) {
             chatter_before_new_response($request, $validator);
         }
@@ -97,8 +97,8 @@ public function store(Request $request)
         if ($new_post->id) {
             $discussion->last_reply_at = $discussion->freshTimestamp();
             $discussion->save();
-            
-            Event::fire(new ChatterAfterNewResponse($request, $new_post));
+
+            Event::dispatch(new ChatterAfterNewResponse($request, $new_post));
             if (function_exists('chatter_after_new_response')) {
                 chatter_after_new_response($request);
             }