diff --git a/application/controllers/admin/update.php b/application/controllers/admin/update.php
index 1a9268b6fa4..ceb5a88eb4d 100755
--- a/application/controllers/admin/update.php
+++ b/application/controllers/admin/update.php
@@ -293,7 +293,8 @@ function step4()
                                 Yii::app()->session['security_update'] = null;
                                 $today = new DateTime("now");
                                 Yii::app()->session['next_update_check'] = $today->add(new DateInterval('PT6H'));
-
+                                Yii::app()->cache->flush();
+                                opcache_reset();
                                 // TODO : aData should contains information about each step
                                 return $this->controller->renderPartial('update/updater/steps/_final', array('destinationBuild'=>$destinationBuild), false, false);
                             }
diff --git a/application/views/admin/update/updater/steps/_final.php b/application/views/admin/update/updater/steps/_final.php
index 98847d2ff4f..de2db3036ad 100644
--- a/application/views/admin/update/updater/steps/_final.php
+++ b/application/views/admin/update/updater/steps/_final.php
@@ -3,6 +3,8 @@
  * This view display the result of the update
  * @var int $destinationBuild the destination build
  */
+Yii::app()->cache->flush();
+opcache_reset();
 ?>
 
 <h2 class="maintitle"><?php eT('Update complete!'); ?></h2>