diff --git a/tests/BasicFormBuilderTest.php b/tests/BasicFormBuilderTest.php
index f52e984..bef3256 100644
--- a/tests/BasicFormBuilderTest.php
+++ b/tests/BasicFormBuilderTest.php
@@ -563,21 +563,21 @@ public function testCanSetGroupData()
 
     public function testRenderInputGroupWithBeforeAddon()
     {
-        $expected = '<div class="form-group"><label for="username">Username</label><div class="input-group"><span class="input-group-addon">@</span><input type="text" name="username" id="username" class="form-control"></div></div>';
+        $expected = '<div class="form-group"><label for="username">Username</label><div class="input-group"><span class="input-group-prepend">@</span><input type="text" name="username" id="username" class="form-control"></div></div>';
         $result = $this->form->inputGroup('Username', 'username')->beforeAddon('@')->render();
         $this->assertEquals($expected, $result);
     }
 
     public function testRenderInputGroupWithAfterAddon()
     {
-        $expected = '<div class="form-group"><label for="site">Site</label><div class="input-group"><input type="text" name="site" id="site" class="form-control"><span class="input-group-addon">.com.br</span></div></div>';
+        $expected = '<div class="form-group"><label for="site">Site</label><div class="input-group"><input type="text" name="site" id="site" class="form-control"><span class="input-group-append">.com.br</span></div></div>';
         $result = $this->form->inputGroup('Site', 'site')->afterAddon('.com.br')->render();
         $this->assertEquals($expected, $result);
     }
 
     public function testRenderInputGroupChangeTypeWithBothAddon()
     {
-        $expected = '<div class="form-group"><label for="secret">Secret</label><div class="input-group"><span class="input-group-addon">before</span><input type="password" name="secret" id="secret" class="form-control"><span class="input-group-addon">after</span></div></div>';
+        $expected = '<div class="form-group"><label for="secret">Secret</label><div class="input-group"><span class="input-group-prepend">before</span><input type="password" name="secret" id="secret" class="form-control"><span class="input-group-append">after</span></div></div>';
         $result = $this->form
             ->inputGroup('Secret', 'secret')
             ->type('password')
diff --git a/tests/InputGroupTest.php b/tests/InputGroupTest.php
index 609da7f..57510b2 100644
--- a/tests/InputGroupTest.php
+++ b/tests/InputGroupTest.php
@@ -20,7 +20,7 @@ public function testCanRenderBeforeAddon()
         $input = new InputGroup('username');
         $this->assertEquals($input, $input->beforeAddon('@'));
 
-        $expected = '<div class="input-group"><span class="input-group-addon">@</span><input type="text" name="username"></div>';
+        $expected = '<div class="input-group"><span class="input-group-prepend">@</span><input type="text" name="username"></div>';
         $result = $input->render();
         $this->assertEquals($expected, $result);
     }
@@ -31,7 +31,7 @@ public function testCanRenderAfterAddonAndType()
         $this->assertEquals($input, $input->type('email'));
         $this->assertEquals($input, $input->afterAddon('@domain.com'));
 
-        $expected = '<div class="input-group"><input type="email" name="mail"><span class="input-group-addon">@domain.com</span></div>';
+        $expected = '<div class="input-group"><input type="email" name="mail"><span class="input-group-append">@domain.com</span></div>';
         $result = $input->render();
         $this->assertEquals($expected, $result);
     }