diff --git a/src/Pecee/Http/Request.php b/src/Pecee/Http/Request.php
index aab2ddb..fddb573 100644
--- a/src/Pecee/Http/Request.php
+++ b/src/Pecee/Http/Request.php
@@ -291,7 +291,7 @@ class Request
      * Will try to find first header from list of headers.
      *
      * @param array $headers
-     * @param null $defaultValue
+     * @param mixed|null $defaultValue
      * @return mixed|null
      */
     public function getFirstHeader(array $headers, $defaultValue = null)
@@ -534,7 +534,7 @@ class Request
         return $this;
     }
 
-    public function __isset($name)
+    public function __isset($name): bool
     {
         return array_key_exists($name, $this->data) === true;
     }
diff --git a/src/Pecee/SimpleRouter/ClassLoader/ClassLoader.php b/src/Pecee/SimpleRouter/ClassLoader/ClassLoader.php
index b6359cf..027028e 100644
--- a/src/Pecee/SimpleRouter/ClassLoader/ClassLoader.php
+++ b/src/Pecee/SimpleRouter/ClassLoader/ClassLoader.php
@@ -16,7 +16,7 @@ class ClassLoader implements IClassLoader
     public function loadClass(string $class)
     {
         if (class_exists($class) === false) {
-            throw new ClassNotFoundHttpException(sprintf('Class "%s" does not exist', $class), 404, null, $class);
+            throw new ClassNotFoundHttpException($class, null, sprintf('Class "%s" does not exist', $class), 404, null);
         }
 
         return new $class();
@@ -34,4 +34,4 @@ class ClassLoader implements IClassLoader
         return \call_user_func_array($closure, $parameters);
     }
 
-}
+}
\ No newline at end of file
diff --git a/src/Pecee/SimpleRouter/Event/EventArgument.php b/src/Pecee/SimpleRouter/Event/EventArgument.php
index e1aad3e..092f9a0 100644
--- a/src/Pecee/SimpleRouter/Event/EventArgument.php
+++ b/src/Pecee/SimpleRouter/Event/EventArgument.php
@@ -83,7 +83,7 @@ class EventArgument implements IEventArgument
      * @param string $name
      * @return bool
      */
-    public function __isset(string $name)
+    public function __isset(string $name): bool
     {
         return array_key_exists($name, $this->arguments);
     }
diff --git a/src/Pecee/SimpleRouter/Exceptions/ClassNotFoundHttpException.php b/src/Pecee/SimpleRouter/Exceptions/ClassNotFoundHttpException.php
index d283874..09fed6a 100644
--- a/src/Pecee/SimpleRouter/Exceptions/ClassNotFoundHttpException.php
+++ b/src/Pecee/SimpleRouter/Exceptions/ClassNotFoundHttpException.php
@@ -9,7 +9,7 @@ class ClassNotFoundHttpException extends NotFoundHttpException
     protected $class;
     protected $method;
 
-    public function __construct($message = "", $code = 0, Throwable $previous = null, string $class, ?string $method = null)
+    public function __construct(string $class, ?string $method = null, $message = "", $code = 0, Throwable $previous = null)
     {
         parent::__construct($message, $code, $previous);
 
diff --git a/src/Pecee/SimpleRouter/Route/IGroupRoute.php b/src/Pecee/SimpleRouter/Route/IGroupRoute.php
index fbfddf3..ff26273 100644
--- a/src/Pecee/SimpleRouter/Route/IGroupRoute.php
+++ b/src/Pecee/SimpleRouter/Route/IGroupRoute.php
@@ -29,7 +29,7 @@ interface IGroupRoute extends IRoute
      * @param array $handlers
      * @return static
      */
-    public function setExceptionHandlers(array $handlers);
+    public function setExceptionHandlers(array $handlers): self;
 
     /**
      * Get exception-handlers for group
diff --git a/src/Pecee/SimpleRouter/Route/ILoadableRoute.php b/src/Pecee/SimpleRouter/Route/ILoadableRoute.php
index d0d7090..0e874e8 100644
--- a/src/Pecee/SimpleRouter/Route/ILoadableRoute.php
+++ b/src/Pecee/SimpleRouter/Route/ILoadableRoute.php
@@ -82,6 +82,6 @@ interface ILoadableRoute extends IRoute
      * @param string $regex
      * @return static
      */
-    public function setMatch($regex): self;
+    public function setMatch(string $regex): self;
 
 }
\ No newline at end of file
diff --git a/src/Pecee/SimpleRouter/Route/IRoute.php b/src/Pecee/SimpleRouter/Route/IRoute.php
index 1af8fe8..4ac88db 100644
--- a/src/Pecee/SimpleRouter/Route/IRoute.php
+++ b/src/Pecee/SimpleRouter/Route/IRoute.php
@@ -10,11 +10,11 @@ interface IRoute
     /**
      * Method called to check if a domain matches
      *
-     * @param string $route
+     * @param string $url
      * @param Request $request
      * @return bool
      */
-    public function matchRoute($route, Request $request): bool;
+    public function matchRoute(string $url, Request $request): bool;
 
     /**
      * Called when route is matched.
@@ -129,7 +129,7 @@ interface IRoute
      * @param string $namespace
      * @return static
      */
-    public function setDefaultNamespace($namespace): IRoute;
+    public function setDefaultNamespace(string $namespace): IRoute;
 
     /**
      * Get default namespace
@@ -196,7 +196,7 @@ interface IRoute
      * @param string $middleware
      * @return static
      */
-    public function addMiddleware($middleware): self;
+    public function addMiddleware(string $middleware): self;
 
     /**
      * Set middlewares array
diff --git a/src/Pecee/SimpleRouter/Route/LoadableRoute.php b/src/Pecee/SimpleRouter/Route/LoadableRoute.php
index ba03159..edf414e 100644
--- a/src/Pecee/SimpleRouter/Route/LoadableRoute.php
+++ b/src/Pecee/SimpleRouter/Route/LoadableRoute.php
@@ -183,7 +183,7 @@ abstract class LoadableRoute extends Route implements ILoadableRoute
      * @param string $regex
      * @return static
      */
-    public function setMatch($regex): ILoadableRoute
+    public function setMatch(string $regex): ILoadableRoute
     {
         $this->regex = $regex;
 
@@ -229,15 +229,15 @@ abstract class LoadableRoute extends Route implements ILoadableRoute
     /**
      * Merge with information from another route.
      *
-     * @param array $values
+     * @param array $settings
      * @param bool $merge
      * @return static
      */
-    public function setSettings(array $values, bool $merge = false): IRoute
+    public function setSettings(array $settings, bool $merge = false): IRoute
     {
-        if (isset($values['as']) === true) {
+        if (isset($settings['as']) === true) {
 
-            $name = $values['as'];
+            $name = $settings['as'];
 
             if ($this->name !== null && $merge !== false) {
                 $name .= '.' . $this->name;
@@ -246,11 +246,11 @@ abstract class LoadableRoute extends Route implements ILoadableRoute
             $this->setName($name);
         }
 
-        if (isset($values['prefix']) === true) {
-            $this->prependUrl($values['prefix']);
+        if (isset($settings['prefix']) === true) {
+            $this->prependUrl($settings['prefix']);
         }
 
-        return parent::setSettings($values, $merge);
+        return parent::setSettings($settings, $merge);
     }
 
 }
\ No newline at end of file
diff --git a/src/Pecee/SimpleRouter/Route/Route.php b/src/Pecee/SimpleRouter/Route/Route.php
index 1696c98..72c96c6 100644
--- a/src/Pecee/SimpleRouter/Route/Route.php
+++ b/src/Pecee/SimpleRouter/Route/Route.php
@@ -95,7 +95,7 @@ abstract class Route implements IRoute
         }
 
         if (method_exists($class, $method) === false) {
-            throw new ClassNotFoundHttpException(sprintf('Method "%s" does not exist in class "%s"', $method, $className), 404, null, $className, $method);
+            throw new ClassNotFoundHttpException($className, $method, sprintf('Method "%s" does not exist in class "%s"', $method, $className), 404, null);
         }
 
         $router->debug('Executing callback');
@@ -327,7 +327,7 @@ abstract class Route implements IRoute
      * @param string $namespace
      * @return static
      */
-    public function setDefaultNamespace($namespace): IRoute
+    public function setDefaultNamespace(string $namespace): IRoute
     {
         $this->defaultNamespace = $namespace;
 
@@ -382,35 +382,35 @@ abstract class Route implements IRoute
     /**
      * Merge with information from another route.
      *
-     * @param array $values
+     * @param array $settings
      * @param bool $merge
      * @return static
      */
-    public function setSettings(array $values, bool $merge = false): IRoute
+    public function setSettings(array $settings, bool $merge = false): IRoute
     {
-        if ($this->namespace === null && isset($values['namespace']) === true) {
-            $this->setNamespace($values['namespace']);
+        if ($this->namespace === null && isset($settings['namespace']) === true) {
+            $this->setNamespace($settings['namespace']);
         }
 
-        if (isset($values['method']) === true) {
-            $this->setRequestMethods(array_merge($this->requestMethods, (array)$values['method']));
+        if (isset($settings['method']) === true) {
+            $this->setRequestMethods(array_merge($this->requestMethods, (array)$settings['method']));
         }
 
-        if (isset($values['where']) === true) {
-            $this->setWhere(array_merge($this->where, (array)$values['where']));
+        if (isset($settings['where']) === true) {
+            $this->setWhere(array_merge($this->where, (array)$settings['where']));
         }
 
-        if (isset($values['parameters']) === true) {
-            $this->setParameters(array_merge($this->parameters, (array)$values['parameters']));
+        if (isset($settings['parameters']) === true) {
+            $this->setParameters(array_merge($this->parameters, (array)$settings['parameters']));
         }
 
         // Push middleware if multiple
-        if (isset($values['middleware']) === true) {
-            $this->setMiddlewares(array_merge((array)$values['middleware'], $this->middlewares));
+        if (isset($settings['middleware']) === true) {
+            $this->setMiddlewares(array_merge((array)$settings['middleware'], $this->middlewares));
         }
 
-        if (isset($values['defaultParameterRegex']) === true) {
-            $this->setDefaultParameterRegex($values['defaultParameterRegex']);
+        if (isset($settings['defaultParameterRegex']) === true) {
+            $this->setDefaultParameterRegex($settings['defaultParameterRegex']);
         }
 
         return $this;
@@ -493,11 +493,11 @@ abstract class Route implements IRoute
     /**
      * Add middleware class-name
      *
-     * @param IMiddleware|string $middleware
+     * @param string $middleware
      * @return static
      * @deprecated This method is deprecated and will be removed in the near future.
      */
-    public function setMiddleware($middleware)
+    public function setMiddleware(string $middleware): self
     {
         $this->middlewares[] = $middleware;
 
@@ -507,10 +507,10 @@ abstract class Route implements IRoute
     /**
      * Add middleware class-name
      *
-     * @param IMiddleware|string $middleware
+     * @param string $middleware
      * @return static
      */
-    public function addMiddleware($middleware): IRoute
+    public function addMiddleware(string $middleware): IRoute
     {
         $this->middlewares[] = $middleware;
 
@@ -545,7 +545,7 @@ abstract class Route implements IRoute
      * @param string $regex
      * @return static
      */
-    public function setDefaultParameterRegex($regex)
+    public function setDefaultParameterRegex(string $regex): self
     {
         $this->defaultParameterRegex = $regex;
 
diff --git a/src/Pecee/SimpleRouter/Route/RouteController.php b/src/Pecee/SimpleRouter/Route/RouteController.php
index 551ddbb..2b00ec5 100644
--- a/src/Pecee/SimpleRouter/Route/RouteController.php
+++ b/src/Pecee/SimpleRouter/Route/RouteController.php
@@ -86,7 +86,7 @@ class RouteController extends LoadableRoute implements IControllerRoute
         return '/' . trim($url, '/') . '/';
     }
 
-    public function matchRoute($url, Request $request): bool
+    public function matchRoute(string $url, Request $request): bool
     {
         if ($this->getGroup() !== null && $this->getGroup()->matchRoute($url, $request) === false) {
             return false;
@@ -167,17 +167,17 @@ class RouteController extends LoadableRoute implements IControllerRoute
     /**
      * Merge with information from another route.
      *
-     * @param array $values
+     * @param array $settings
      * @param bool $merge
      * @return static
      */
-    public function setSettings(array $values, bool $merge = false): IRoute
+    public function setSettings(array $settings, bool $merge = false): IRoute
     {
-        if (isset($values['names']) === true) {
-            $this->names = $values['names'];
+        if (isset($settings['names']) === true) {
+            $this->names = $settings['names'];
         }
 
-        return parent::setSettings($values, $merge);
+        return parent::setSettings($settings, $merge);
     }
 
 }
\ No newline at end of file
diff --git a/src/Pecee/SimpleRouter/Route/RouteGroup.php b/src/Pecee/SimpleRouter/Route/RouteGroup.php
index 8e724ee..68e9e75 100644
--- a/src/Pecee/SimpleRouter/Route/RouteGroup.php
+++ b/src/Pecee/SimpleRouter/Route/RouteGroup.php
@@ -49,7 +49,7 @@ class RouteGroup extends Route implements IGroupRoute
      * @param Request $request
      * @return bool
      */
-    public function matchRoute($url, Request $request): bool
+    public function matchRoute(string $url, Request $request): bool
     {
         if ($this->getGroup() !== null && $this->getGroup()->matchRoute($url, $request) === false) {
             return false;
@@ -154,28 +154,28 @@ class RouteGroup extends Route implements IGroupRoute
     /**
      * Merge with information from another route.
      *
-     * @param array $values
+     * @param array $settings
      * @param bool $merge
      * @return static
      */
-    public function setSettings(array $values, bool $merge = false): IRoute
+    public function setSettings(array $settings, bool $merge = false): IRoute
     {
 
-        if (isset($values['prefix']) === true) {
-            $this->setPrefix($values['prefix'] . $this->prefix);
+        if (isset($settings['prefix']) === true) {
+            $this->setPrefix($settings['prefix'] . $this->prefix);
         }
 
-        if ($merge === false && isset($values['exceptionHandler']) === true) {
-            $this->setExceptionHandlers((array)$values['exceptionHandler']);
+        if ($merge === false && isset($settings['exceptionHandler']) === true) {
+            $this->setExceptionHandlers((array)$settings['exceptionHandler']);
         }
 
-        if ($merge === false && isset($values['domain']) === true) {
-            $this->setDomains((array)$values['domain']);
+        if ($merge === false && isset($settings['domain']) === true) {
+            $this->setDomains((array)$settings['domain']);
         }
 
-        if (isset($values['as']) === true) {
+        if (isset($settings['as']) === true) {
 
-            $name = $values['as'];
+            $name = $settings['as'];
 
             if ($this->name !== null && $merge !== false) {
                 $name .= '.' . $this->name;
@@ -184,7 +184,7 @@ class RouteGroup extends Route implements IGroupRoute
             $this->name = $name;
         }
 
-        return parent::setSettings($values, $merge);
+        return parent::setSettings($settings, $merge);
     }
 
     /**
diff --git a/src/Pecee/SimpleRouter/Route/RoutePartialGroup.php b/src/Pecee/SimpleRouter/Route/RoutePartialGroup.php
index fc3628b..1e1a51b 100644
--- a/src/Pecee/SimpleRouter/Route/RoutePartialGroup.php
+++ b/src/Pecee/SimpleRouter/Route/RoutePartialGroup.php
@@ -22,7 +22,7 @@ class RoutePartialGroup extends RouteGroup implements IPartialGroupRoute
      * @param Request $request
      * @return bool
      */
-    public function matchRoute($url, Request $request): bool
+    public function matchRoute(string $url, Request $request): bool
     {
         if ($this->getGroup() !== null && $this->getGroup()->matchRoute($url, $request) === false) {
             return false;
diff --git a/src/Pecee/SimpleRouter/Route/RouteResource.php b/src/Pecee/SimpleRouter/Route/RouteResource.php
index 7ae692c..73ea662 100644
--- a/src/Pecee/SimpleRouter/Route/RouteResource.php
+++ b/src/Pecee/SimpleRouter/Route/RouteResource.php
@@ -83,7 +83,7 @@ class RouteResource extends LoadableRoute implements IControllerRoute
         return true;
     }
 
-    public function matchRoute($url, Request $request): bool
+    public function matchRoute(string $url, Request $request): bool
     {
         if ($this->getGroup() !== null && $this->getGroup()->matchRoute($url, $request) === false) {
             return false;
@@ -210,21 +210,21 @@ class RouteResource extends LoadableRoute implements IControllerRoute
     /**
      * Merge with information from another route.
      *
-     * @param array $values
+     * @param array $settings
      * @param bool $merge
      * @return static
      */
-    public function setSettings(array $values, bool $merge = false): IRoute
+    public function setSettings(array $settings, bool $merge = false): IRoute
     {
-        if (isset($values['names']) === true) {
-            $this->names = $values['names'];
+        if (isset($settings['names']) === true) {
+            $this->names = $settings['names'];
         }
 
-        if (isset($values['methods']) === true) {
-            $this->methodNames = $values['methods'];
+        if (isset($settings['methods']) === true) {
+            $this->methodNames = $settings['methods'];
         }
 
-        return parent::setSettings($values, $merge);
+        return parent::setSettings($settings, $merge);
     }
 
 }
\ No newline at end of file
diff --git a/src/Pecee/SimpleRouter/Route/RouteUrl.php b/src/Pecee/SimpleRouter/Route/RouteUrl.php
index cdfcb60..a4f62c1 100644
--- a/src/Pecee/SimpleRouter/Route/RouteUrl.php
+++ b/src/Pecee/SimpleRouter/Route/RouteUrl.php
@@ -12,7 +12,7 @@ class RouteUrl extends LoadableRoute
         $this->setCallback($callback);
     }
 
-    public function matchRoute($url, Request $request): bool
+    public function matchRoute(string $url, Request $request): bool
     {
         if ($this->getGroup() !== null && $this->getGroup()->matchRoute($url, $request) === false) {
             return false;
diff --git a/src/Pecee/SimpleRouter/Router.php b/src/Pecee/SimpleRouter/Router.php
index 72fbc05..91b7b67 100644
--- a/src/Pecee/SimpleRouter/Router.php
+++ b/src/Pecee/SimpleRouter/Router.php
@@ -461,7 +461,7 @@ class Router
      * @throws HttpException
      * @throws \Exception
      */
-    protected function handleRouteRewrite($key, string $url): ?string
+    protected function handleRouteRewrite(string $key, string $url): ?string
     {
         /* If the request has changed */
         if ($this->request->hasPendingRewrite() === false) {
@@ -874,7 +874,7 @@ class Router
      * @param string $name
      * @param array $arguments
      */
-    protected function fireEvents($name, array $arguments = []): void
+    protected function fireEvents(string $name, array $arguments = []): void
     {
         if (\count($this->eventHandlers) === 0) {
             return;
diff --git a/src/Pecee/SimpleRouter/SimpleRouter.php b/src/Pecee/SimpleRouter/SimpleRouter.php
index d11d255..408a8d2 100644
--- a/src/Pecee/SimpleRouter/SimpleRouter.php
+++ b/src/Pecee/SimpleRouter/SimpleRouter.php
@@ -169,7 +169,7 @@ class SimpleRouter
      * @param int $httpCode
      * @return IRoute
      */
-    public static function redirect($where, $to, $httpCode = 301): IRoute
+    public static function redirect(string $where, string $to, int $httpCode = 301): IRoute
     {
         return static::get($where, function () use ($to, $httpCode) {
             static::response()->redirect($to, $httpCode);