diff --git a/src/Autoloader.php b/src/Autoloader.php
index e9885cb..052a981 100644
--- a/src/Autoloader.php
+++ b/src/Autoloader.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo;
 
 /**
diff --git a/src/Config/ArrayConfig.php b/src/Config/ArrayConfig.php
index 28bc01c..c4f8929 100644
--- a/src/Config/ArrayConfig.php
+++ b/src/Config/ArrayConfig.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Config;
 
 /**
diff --git a/src/Config/BaseConfig.php b/src/Config/BaseConfig.php
index 73f13dc..9aa8f64 100644
--- a/src/Config/BaseConfig.php
+++ b/src/Config/BaseConfig.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Config;
 
 /**
diff --git a/src/Config/JsonConfig.php b/src/Config/JsonConfig.php
index 743a5fe..5d078cb 100644
--- a/src/Config/JsonConfig.php
+++ b/src/Config/JsonConfig.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Config;
 
 /**
diff --git a/src/Context.php b/src/Context.php
index 13f7344..e46589c 100644
--- a/src/Context.php
+++ b/src/Context.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo;
 
 use Cervo\Config\BaseConfig;
diff --git a/src/ControllerReflection.php b/src/ControllerReflection.php
index 4664772..3257de0 100644
--- a/src/ControllerReflection.php
+++ b/src/ControllerReflection.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo;
 
 use Cervo\Exceptions\ControllerReflection\InvalidControllerException;
diff --git a/src/Core.php b/src/Core.php
index b3b2e89..db7fe31 100644
--- a/src/Core.php
+++ b/src/Core.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo;
 
 use Cervo\Config\BaseConfig;
diff --git a/src/Events.php b/src/Events.php
index ce3a9ab..ded9311 100644
--- a/src/Events.php
+++ b/src/Events.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo;
 
 use Cervo\Interfaces\SingletonInterface;
diff --git a/src/Exceptions/Context/InvalidProviderException.php b/src/Exceptions/Context/InvalidProviderException.php
index 3021392..e0665ad 100644
--- a/src/Exceptions/Context/InvalidProviderException.php
+++ b/src/Exceptions/Context/InvalidProviderException.php
@@ -1,7 +1,5 @@
 <?php
 
-declare(strict_types=1);
-
 /**
  * This file is part of the Cervo package.
  *
@@ -15,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Exceptions\Router;
 
 use Cervo\Exceptions\ContextException;
diff --git a/src/Exceptions/ContextException.php b/src/Exceptions/ContextException.php
index 1b2be85..194292f 100644
--- a/src/Exceptions/ContextException.php
+++ b/src/Exceptions/ContextException.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Exceptions;
 
 class ContextException extends \RuntimeException
diff --git a/src/Exceptions/ControllerReflection/InvalidControllerException.php b/src/Exceptions/ControllerReflection/InvalidControllerException.php
index 438da7f..cd0d890 100644
--- a/src/Exceptions/ControllerReflection/InvalidControllerException.php
+++ b/src/Exceptions/ControllerReflection/InvalidControllerException.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Exceptions\ControllerReflection;
 
 use Cervo\Exceptions\ControllerReflectionException;
diff --git a/src/Exceptions/ControllerReflectionException.php b/src/Exceptions/ControllerReflectionException.php
index 4ef74d7..1257377 100644
--- a/src/Exceptions/ControllerReflectionException.php
+++ b/src/Exceptions/ControllerReflectionException.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Exceptions;
 
 class ControllerReflectionException extends \RuntimeException
diff --git a/src/Exceptions/Router/InvalidMiddlewareException.php b/src/Exceptions/Router/InvalidMiddlewareException.php
index 3abb100..c467604 100644
--- a/src/Exceptions/Router/InvalidMiddlewareException.php
+++ b/src/Exceptions/Router/InvalidMiddlewareException.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Exceptions\Router;
 
 use Cervo\Exceptions\RouterException;
diff --git a/src/Exceptions/Router/MethodNotAllowedException.php b/src/Exceptions/Router/MethodNotAllowedException.php
index 80a22d3..6ef88a6 100644
--- a/src/Exceptions/Router/MethodNotAllowedException.php
+++ b/src/Exceptions/Router/MethodNotAllowedException.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Exceptions\Router;
 
 use Cervo\Exceptions\RouterException;
diff --git a/src/Exceptions/Router/RouteMiddlewareFailedException.php b/src/Exceptions/Router/RouteMiddlewareFailedException.php
index 38770ab..60bd413 100644
--- a/src/Exceptions/Router/RouteMiddlewareFailedException.php
+++ b/src/Exceptions/Router/RouteMiddlewareFailedException.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Exceptions\Router;
 
 use Cervo\Exceptions\RouterException;
diff --git a/src/Exceptions/Router/RouteNotFoundException.php b/src/Exceptions/Router/RouteNotFoundException.php
index 8c2aba5..ab5cad3 100644
--- a/src/Exceptions/Router/RouteNotFoundException.php
+++ b/src/Exceptions/Router/RouteNotFoundException.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Exceptions\Router;
 
 use Cervo\Exceptions\RouterException;
diff --git a/src/Exceptions/RouterException.php b/src/Exceptions/RouterException.php
index 6652d80..a2b13cc 100644
--- a/src/Exceptions/RouterException.php
+++ b/src/Exceptions/RouterException.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Exceptions;
 
 class RouterException extends \RuntimeException
diff --git a/src/Exceptions/SingletonException.php b/src/Exceptions/SingletonException.php
index 11899a0..33ff86c 100644
--- a/src/Exceptions/SingletonException.php
+++ b/src/Exceptions/SingletonException.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Exceptions;
 
 class SingletonException extends \RuntimeException
diff --git a/src/Exceptions/Singletons/InvalidClassException.php b/src/Exceptions/Singletons/InvalidClassException.php
index 2c103d3..47c8dc1 100644
--- a/src/Exceptions/Singletons/InvalidClassException.php
+++ b/src/Exceptions/Singletons/InvalidClassException.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Exceptions\Singletons;
 
 use Cervo\Exceptions\SingletonException;
diff --git a/src/Interfaces/ControllerInterface.php b/src/Interfaces/ControllerInterface.php
index 0fa66e3..b245c68 100644
--- a/src/Interfaces/ControllerInterface.php
+++ b/src/Interfaces/ControllerInterface.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Interfaces;
 
 /**
diff --git a/src/Interfaces/MiddlewareInterface.php b/src/Interfaces/MiddlewareInterface.php
index da582a0..21f2cbf 100644
--- a/src/Interfaces/MiddlewareInterface.php
+++ b/src/Interfaces/MiddlewareInterface.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Interfaces;
 
 use Cervo\Route;
diff --git a/src/Interfaces/ProviderInterface.php b/src/Interfaces/ProviderInterface.php
index 30d2806..07d64ac 100644
--- a/src/Interfaces/ProviderInterface.php
+++ b/src/Interfaces/ProviderInterface.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Interfaces;
 
 use Cervo\Context;
diff --git a/src/Interfaces/SingletonInterface.php b/src/Interfaces/SingletonInterface.php
index 3aeedbd..fd11c8e 100644
--- a/src/Interfaces/SingletonInterface.php
+++ b/src/Interfaces/SingletonInterface.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Interfaces;
 
 use Cervo\Context;
diff --git a/src/ModulesManager.php b/src/ModulesManager.php
index 7c6dacb..de48143 100644
--- a/src/ModulesManager.php
+++ b/src/ModulesManager.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo;
 
 /**
diff --git a/src/Route.php b/src/Route.php
index e1323e6..21880a2 100644
--- a/src/Route.php
+++ b/src/Route.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo;
 
 /**
diff --git a/src/Router.php b/src/Router.php
index ae70992..0d71dab 100644
--- a/src/Router.php
+++ b/src/Router.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo;
 
 use Cervo\Exceptions\Router\InvalidMiddlewareException;
diff --git a/src/Singletons.php b/src/Singletons.php
index 542529c..e236872 100644
--- a/src/Singletons.php
+++ b/src/Singletons.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo;
 
 use Cervo\Exceptions\Singletons\InvalidClassException;
diff --git a/src/Utils/ClassUtils.php b/src/Utils/ClassUtils.php
index 980931e..53addc0 100644
--- a/src/Utils/ClassUtils.php
+++ b/src/Utils/ClassUtils.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Utils;
 
 /**
diff --git a/src/Utils/PathUtils.php b/src/Utils/PathUtils.php
index 0806d3d..4212701 100644
--- a/src/Utils/PathUtils.php
+++ b/src/Utils/PathUtils.php
@@ -13,6 +13,8 @@
  * @since     5.0.0
  */
 
+declare(strict_types=1);
+
 namespace Cervo\Utils;
 
 /**