diff --git a/templates/project/micro/views/404.phtml b/templates/project/micro/views/404.phtml
index f4ba5e0de..d433030e9 100644
--- a/templates/project/micro/views/404.phtml
+++ b/templates/project/micro/views/404.phtml
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <html>
     <head>
-        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
+        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
         <link rel="shortcut icon" type="image/x-icon" href="<?php echo $this->url->get('img/favicon.ico')?>"/>
         <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
         <title>Phalcon PHP Framework</title>
diff --git a/templates/project/micro/views/404.volt b/templates/project/micro/views/404.volt
index 7e38e0a19..01df83e8d 100644
--- a/templates/project/micro/views/404.volt
+++ b/templates/project/micro/views/404.volt
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <html>
     <head>
-        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
+        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
         <link rel="shortcut icon" type="image/x-icon" href="{{ url('img/favicon.ico') }}"/>
         <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
         <title>Phalcon PHP Framework</title>
diff --git a/templates/project/micro/views/index.phtml b/templates/project/micro/views/index.phtml
index f998683a5..1f7f218f0 100644
--- a/templates/project/micro/views/index.phtml
+++ b/templates/project/micro/views/index.phtml
@@ -6,7 +6,7 @@
         <meta name="viewport" content="width=device-width, initial-scale=1">
         <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
         <title>Phalcon PHP Framework</title>
-        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
+        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
         <link rel="shortcut icon" type="image/x-icon" href="<?php echo $this->url->get('img/favicon.ico')?>"/>
     </head>
     <body>
@@ -20,9 +20,9 @@
 
             <p>This page is located at <code>views/index.phtml</code></p>
         </div>
-        <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
-        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
-        <!-- Latest compiled and minified JavaScript -->
-        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
+        <!-- jQuery first, then Popper.js, and then Bootstrap's JavaScript -->
+        <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
+        <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
+        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
     </body>
 </html>
diff --git a/templates/project/micro/views/index.volt b/templates/project/micro/views/index.volt
index 316678cbd..eb047601e 100644
--- a/templates/project/micro/views/index.volt
+++ b/templates/project/micro/views/index.volt
@@ -6,7 +6,7 @@
         <meta name="viewport" content="width=device-width, initial-scale=1">
         <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
         <title>Phalcon PHP Framework</title>
-        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
+        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
         <link rel="shortcut icon" type="image/x-icon" href="{{ url('img/favicon.ico') }}"/>
     </head>
     <body>
@@ -21,9 +21,9 @@
             <p>This page is located at <code>views/index.volt</code></p>
         </div>
 
-        <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
-        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
-        <!-- Latest compiled and minified JavaScript -->
-        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
+        <!-- jQuery first, then Popper.js, and then Bootstrap's JavaScript -->
+        <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
+        <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
+        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
     </body>
 </html>
diff --git a/templates/project/modules/views/index.phtml b/templates/project/modules/views/index.phtml
index 95c0a44b0..4cea70fd2 100644
--- a/templates/project/modules/views/index.phtml
+++ b/templates/project/modules/views/index.phtml
@@ -6,16 +6,16 @@
         <meta name="viewport" content="width=device-width, initial-scale=1">
         <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
         <title>Phalcon PHP Framework</title>
-        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
+        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
         <link rel="shortcut icon" type="image/x-icon" href="<?php echo $this->url->get('img/favicon.ico')?>"/>
     </head>
     <body>
         <div class="container">
             <?php echo $this->getContent(); ?>
         </div>
-        <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
-        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
-        <!-- Latest compiled and minified JavaScript -->
-        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
+        <!-- jQuery first, then Popper.js, and then Bootstrap's JavaScript -->
+        <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
+        <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
+        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
     </body>
 </html>
diff --git a/templates/project/modules/views/index.volt b/templates/project/modules/views/index.volt
index b199a1014..fc6ddef36 100644
--- a/templates/project/modules/views/index.volt
+++ b/templates/project/modules/views/index.volt
@@ -6,16 +6,16 @@
         <meta name="viewport" content="width=device-width, initial-scale=1">
         <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
         <title>Phalcon PHP Framework</title>
-        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
+        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
         <link rel="shortcut icon" type="image/x-icon" href="{{ url('img/favicon.ico') }}"/>
     </head>
     <body>
         <div class="container">
             {{ content() }}
         </div>
-        <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
-        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
-        <!-- Latest compiled and minified JavaScript -->
-        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
+        <!-- jQuery first, then Popper.js, and then Bootstrap's JavaScript -->
+        <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
+        <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
+        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
     </body>
 </html>
diff --git a/templates/project/simple/views/index.phtml b/templates/project/simple/views/index.phtml
index 95c0a44b0..4cea70fd2 100644
--- a/templates/project/simple/views/index.phtml
+++ b/templates/project/simple/views/index.phtml
@@ -6,16 +6,16 @@
         <meta name="viewport" content="width=device-width, initial-scale=1">
         <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
         <title>Phalcon PHP Framework</title>
-        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
+        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
         <link rel="shortcut icon" type="image/x-icon" href="<?php echo $this->url->get('img/favicon.ico')?>"/>
     </head>
     <body>
         <div class="container">
             <?php echo $this->getContent(); ?>
         </div>
-        <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
-        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
-        <!-- Latest compiled and minified JavaScript -->
-        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
+        <!-- jQuery first, then Popper.js, and then Bootstrap's JavaScript -->
+        <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
+        <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
+        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
     </body>
 </html>
diff --git a/templates/project/simple/views/index.volt b/templates/project/simple/views/index.volt
index b199a1014..fc6ddef36 100644
--- a/templates/project/simple/views/index.volt
+++ b/templates/project/simple/views/index.volt
@@ -6,16 +6,16 @@
         <meta name="viewport" content="width=device-width, initial-scale=1">
         <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
         <title>Phalcon PHP Framework</title>
-        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
+        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
         <link rel="shortcut icon" type="image/x-icon" href="{{ url('img/favicon.ico') }}"/>
     </head>
     <body>
         <div class="container">
             {{ content() }}
         </div>
-        <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
-        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
-        <!-- Latest compiled and minified JavaScript -->
-        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
+        <!-- jQuery first, then Popper.js, and then Bootstrap's JavaScript -->
+        <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
+        <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
+        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
     </body>
 </html>
