diff --git a/src/Lily/Adapter/Test.php b/src/Lily/Adapter/Test.php
index b794c73..bf79ebe 100644
--- a/src/Lily/Adapter/Test.php
+++ b/src/Lily/Adapter/Test.php
@@ -92,7 +92,7 @@ private function shallowMergeRequests($r1, $r2)
         return $mergedRequest;
     }
 
-    public function run($handler, array $request = array())
+    public function run($handler, $request = array())
     {
         $originalRequest =
             $this->shallowMergeRequests(
diff --git a/src/Lily/Application/MiddlewareApplication.php b/src/Lily/Application/MiddlewareApplication.php
index f7c0efc..43dc22d 100644
--- a/src/Lily/Application/MiddlewareApplication.php
+++ b/src/Lily/Application/MiddlewareApplication.php
@@ -6,7 +6,7 @@ class MiddlewareApplication
 {
     private $middleware;
 
-    public function __construct(array $pipeline = NULL)
+    public function __construct($pipeline = NULL)
     {
         if ($pipeline !== NULL) {
             $this->middleware = $pipeline;
diff --git a/src/Lily/Application/RoutedApplication.php b/src/Lily/Application/RoutedApplication.php
index 6400a65..eeba77d 100644
--- a/src/Lily/Application/RoutedApplication.php
+++ b/src/Lily/Application/RoutedApplication.php
@@ -23,7 +23,7 @@ class RoutedApplication
 
     private $routes = array();
 
-    public function __construct(array $routes = NULL)
+    public function __construct($routes = NULL)
     {
         if ($routes !== NULL) {
             $this->routes = $routes;
@@ -224,7 +224,7 @@ public function __invoke($request)
         return Response::notFound();
     }
 
-    public function uri($name, array $params = array())
+    public function uri($name, $params = array())
     {
         $routes = $this->routes();
         $uri = $routes[$name][1];
diff --git a/src/Lily/Middleware/Cookie.php b/src/Lily/Middleware/Cookie.php
index fda2827..8b21c45 100644
--- a/src/Lily/Middleware/Cookie.php
+++ b/src/Lily/Middleware/Cookie.php
@@ -35,7 +35,7 @@ public static function unsign($request, $name, $originalValue, $salt)
     private $defaults = array();
     private $salt = 'a-salt';
 
-    public function __construct(array $config = NULL)
+    public function __construct($config = NULL)
     {
         if (isset($config['defaults'])) {
             $this->defaults = $config['defaults'];
diff --git a/src/Lily/Middleware/DefaultHeaders.php b/src/Lily/Middleware/DefaultHeaders.php
index 6f703e9..ef7f31d 100644
--- a/src/Lily/Middleware/DefaultHeaders.php
+++ b/src/Lily/Middleware/DefaultHeaders.php
@@ -6,7 +6,7 @@ class DefaultHeaders
 {
     private $headers;
 
-    public function __construct(array $config)
+    public function __construct($config)
     {
         $this->headers = $config['headers'];
     }
diff --git a/src/Lily/Middleware/ExceptionHandler.php b/src/Lily/Middleware/ExceptionHandler.php
index b520240..d88fbf2 100644
--- a/src/Lily/Middleware/ExceptionHandler.php
+++ b/src/Lily/Middleware/ExceptionHandler.php
@@ -14,7 +14,7 @@ class ExceptionHandler
 {
     private $handler;
 
-    public function __construct(array $config = array())
+    public function __construct($config = array())
     {
         if (isset($config['handler'])) {
             $this->handler = $config['handler'];
diff --git a/src/Lily/Middleware/Injection.php b/src/Lily/Middleware/Injection.php
index 354207d..688eff3 100644
--- a/src/Lily/Middleware/Injection.php
+++ b/src/Lily/Middleware/Injection.php
@@ -6,7 +6,7 @@ class Injection
 {
     private $map;
 
-    public function __construct(array $config)
+    public function __construct($config)
     {
         $this->map = $config['inject'];
     }
diff --git a/src/Lily/Middleware/ResponseStatusHandler.php b/src/Lily/Middleware/ResponseStatusHandler.php
index 259c7b7..c97e2c5 100644
--- a/src/Lily/Middleware/ResponseStatusHandler.php
+++ b/src/Lily/Middleware/ResponseStatusHandler.php
@@ -6,7 +6,7 @@ class ResponseStatusHandler
 {
     private $statusHandlers;
 
-    public function __construct(array $config)
+    public function __construct($config)
     {
         $this->statusHandlers = $config['handlers'];
     }
diff --git a/src/Lily/Middleware/Session.php b/src/Lily/Middleware/Session.php
index db2e4d7..ce92ba5 100644
--- a/src/Lily/Middleware/Session.php
+++ b/src/Lily/Middleware/Session.php
@@ -8,7 +8,7 @@ class Session
 {
     private $store;
 
-    public function __construct(array $config = NULL)
+    public function __construct($config = NULL)
     {
         if (isset($config['store'])) {
             $this->store = $config['store'];
diff --git a/src/Lily/Middleware/Session/CookieStore.php b/src/Lily/Middleware/Session/CookieStore.php
index e928ced..d2cedef 100644
--- a/src/Lily/Middleware/Session/CookieStore.php
+++ b/src/Lily/Middleware/Session/CookieStore.php
@@ -7,7 +7,7 @@ class CookieStore
     private $name = '_session';
     private $cookie = array();
 
-    public function __construct(array $config = NULL)
+    public function __construct($config = NULL)
     {
         if (isset($config['cookie'])) {
             if (isset($config['cookie']['name'])) {
@@ -19,7 +19,7 @@ public function __construct(array $config = NULL)
         }
     }
 
-    public function get(array $request)
+    public function get($request)
     {
         if (isset($request['cookies'][$this->name])) {
             $request['session'] =
@@ -31,7 +31,7 @@ public function get(array $request)
         return $request;
     }
 
-    public function set(array $response)
+    public function set($response)
     {
         if (isset($response['session'])) {
             $response['cookies'][$this->name] =
diff --git a/src/Lily/Middleware/Session/NativeStore.php b/src/Lily/Middleware/Session/NativeStore.php
index ae8ef63..e9a8557 100644
--- a/src/Lily/Middleware/Session/NativeStore.php
+++ b/src/Lily/Middleware/Session/NativeStore.php
@@ -11,13 +11,13 @@ public function __construct()
         }
     }
 
-    public function get(array $request)
+    public function get($request)
     {
         $request['session'] = $_SESSION;
         return $request;
     }
 
-    public function set(array $response)
+    public function set($response)
     {
         if (isset($response['session'])) {
             $_SESSION = $response['session'];