diff --git a/app/Http/Middleware/Lang.php b/app/Http/Middleware/Lang.php
index ae715f4..a0c85ab 100644
--- a/app/Http/Middleware/Lang.php
+++ b/app/Http/Middleware/Lang.php
@@ -15,7 +15,7 @@ class Lang
      */
     public function handle($request, Closure $next)
     {
-        app()->setLocale(request('lang', session('lang')));
+        app()->setLocale(request('lang', session('lang', 'id')));
         if (request('lang')) {
             session(['lang' => request('lang')]);
         }
diff --git a/resources/lang/en/app.php b/resources/lang/en/app.php
index c4a08c2..4ac0bda 100644
--- a/resources/lang/en/app.php
+++ b/resources/lang/en/app.php
@@ -19,6 +19,7 @@ return [
 
     // Actions
     'edit'              => 'Edit',
+    'update'            => 'Update',
     'show_profile'      => 'Show Profile',
     'show_family_chart' => 'Show Family Chart',
     'show_family_tree'  => 'Show Family Tree',
diff --git a/resources/lang/id/app.php b/resources/lang/id/app.php
index f32f114..5f9ed76 100644
--- a/resources/lang/id/app.php
+++ b/resources/lang/id/app.php
@@ -19,6 +19,7 @@ return [
 
     // Actions
     'edit'              => 'Edit',
+    'update'            => 'Update',
     'show_profile'      => 'Lihat Profil',
     'show_family_chart' => 'Lihat Bagan Keluarga',
     'show_family_tree'  => 'Lihat Pohon Keluarga',
diff --git a/tests/Feature/ManageUserFamiliesTest.php b/tests/Feature/ManageUserFamiliesTest.php
index 22ca06f..5acc318 100644
--- a/tests/Feature/ManageUserFamiliesTest.php
+++ b/tests/Feature/ManageUserFamiliesTest.php
@@ -17,7 +17,7 @@ class ManageUserFamiliesTest extends TestCase
         $this->visit(route('profile'));
         $this->seePageIs(route('profile'));
         $this->dontSeeElement('input', ['name' => 'set_father']);
-        $this->click('Set Ayah');
+        $this->click(trans('user.set_father'));
         $this->seePageIs(route('users.show', [$user->id, 'action' => 'set_father']));
         $this->seeElement('input', ['name' => 'set_father']);
 
@@ -39,7 +39,7 @@ class ManageUserFamiliesTest extends TestCase
         $this->visit(route('profile'));
         $this->seePageIs(route('profile'));
         $this->dontSeeElement('input', ['name' => 'set_mother']);
-        $this->click('Set Ibu');
+        $this->click(trans('user.set_mother'));
         $this->seePageIs(route('users.show', [$user->id, 'action' => 'set_mother']));
         $this->seeElement('input', ['name' => 'set_mother']);
 
@@ -61,12 +61,12 @@ class ManageUserFamiliesTest extends TestCase
         $user = $this->loginAsUser(['gender_id' => 1]);
         $this->visit(route('profile'));
         $this->seePageIs(route('profile'));
-        $this->click('Tambah Anak');
+        $this->click(trans('user.add_child'));
         $this->seeElement('input', ['name' => 'add_child_name']);
         $this->seeElement('input', ['name' => 'add_child_gender_id']);
         $this->seeElement('select', ['name' => 'add_child_parent_id']);
 
-        $this->submitForm('Tambah Anak', [
+        $this->submitForm(trans('user.add_child'), [
             'add_child_name' => 'Nama Anak 1',
             'add_child_gender_id' => 1,
             'add_child_parent_id' => '',
@@ -94,12 +94,12 @@ class ManageUserFamiliesTest extends TestCase
 
         $this->visit(route('profile'));
         $this->seePageIs(route('profile'));
-        $this->click('Tambah Anak');
+        $this->click(trans('user.add_child'));
         $this->seeElement('input', ['name' => 'add_child_name']);
         $this->seeElement('input', ['name' => 'add_child_gender_id']);
         $this->seeElement('select', ['name' => 'add_child_parent_id']);
 
-        $this->submitForm('Tambah Anak', [
+        $this->submitForm(trans('user.add_child'), [
             'add_child_name' => 'Nama Anak 1',
             'add_child_gender_id' => 1,
             'add_child_parent_id' => $marriageId,
@@ -120,7 +120,7 @@ class ManageUserFamiliesTest extends TestCase
         $user = $this->loginAsUser(['gender_id' => 1]);
         $this->visit(route('profile'));
         $this->seePageIs(route('profile'));
-        $this->click('Tambah Isteri');
+        $this->click(trans('user.add_wife'));
         $this->seeElement('input', ['name' => 'set_wife']);
 
         $this->submitForm('set_wife_button', [
@@ -146,7 +146,7 @@ class ManageUserFamiliesTest extends TestCase
         $user = $this->loginAsUser(['gender_id' => 2]);
         $this->visit(route('profile'));
         $this->seePageIs(route('profile'));
-        $this->click('Tambah Suami');
+        $this->click(trans('user.add_husband'));
         $this->seeElement('input', ['name' => 'set_husband']);
 
         $this->submitForm('set_husband_button', [
@@ -176,7 +176,7 @@ class ManageUserFamiliesTest extends TestCase
         $this->visit(route('profile'));
         $this->seePageIs(route('profile'));
         $this->dontSeeElement('input', ['name' => 'set_father']);
-        $this->click('Set Ayah');
+        $this->click(trans('user.set_father'));
         $this->seePageIs(route('users.show', [$user->id, 'action' => 'set_father']));
         $this->seeElement('input', ['name' => 'set_father']);
         $this->seeElement('select', ['name' => 'set_father_id']);
@@ -198,7 +198,7 @@ class ManageUserFamiliesTest extends TestCase
         $this->visit(route('profile'));
         $this->seePageIs(route('profile'));
         $this->dontSeeElement('input', ['name' => 'set_mother']);
-        $this->click('Set Ibu');
+        $this->click(trans('user.set_mother'));
         $this->seePageIs(route('users.show', [$user->id, 'action' => 'set_mother']));
         $this->seeElement('input', ['name' => 'set_mother']);
         $this->seeElement('select', ['name' => 'set_mother_id']);
@@ -219,7 +219,7 @@ class ManageUserFamiliesTest extends TestCase
 
         $this->visit(route('profile'));
         $this->seePageIs(route('profile'));
-        $this->click('Tambah Isteri');
+        $this->click(trans('user.add_wife'));
         $this->seeElement('input', ['name' => 'set_wife']);
         $this->seeElement('select', ['name' => 'set_wife_id']);
 
@@ -242,7 +242,7 @@ class ManageUserFamiliesTest extends TestCase
 
         $this->visit(route('profile'));
         $this->seePageIs(route('profile'));
-        $this->click('Tambah Suami');
+        $this->click(trans('user.add_husband'));
         $this->seeElement('input', ['name' => 'set_husband']);
         $this->seeElement('select', ['name' => 'set_husband_id']);
 
diff --git a/tests/Feature/UsersProfileTest.php b/tests/Feature/UsersProfileTest.php
index 771db08..85b6a03 100644
--- a/tests/Feature/UsersProfileTest.php
+++ b/tests/Feature/UsersProfileTest.php
@@ -25,7 +25,7 @@ class UsersProfileTest extends TestCase
         $this->visit(route('users.edit', $user->id));
         $this->seePageIs(route('users.edit', $user->id));
 
-        $this->submitForm('Update', [
+        $this->submitForm(trans('app.update'), [
             'nickname'  => 'Nama Panggilan',
             'name'      => 'Nama User',
             'gender_id' => 1,