diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5859c3a..6026390 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,6 +14,6 @@ jobs:
       - name: PHPUnit Tests
         uses: php-actions/phpunit@master
         with:
-          php_version: 8.2
+          php_version: 7.4
           bootstrap: tests/bootstrap.php
           configuration: phpunit.xml
\ No newline at end of file
diff --git a/src/Conditions/HasCap.php b/src/Conditions/HasCap.php
index 7b9541f..420883a 100644
--- a/src/Conditions/HasCap.php
+++ b/src/Conditions/HasCap.php
@@ -31,7 +31,7 @@ class HasCap implements Condition
      *
      * @return void
      */
-    public function __construct(string|iterable $capabilities, $user = null)
+    public function __construct($capabilities, $user = null)
     {
         $this->setUser($user);
 
@@ -44,7 +44,7 @@ public function __construct(string|iterable $capabilities, $user = null)
         }
     }
 
-    protected function setUser(WP_User|null $user): void
+    protected function setUser($user): void
     {
         $this->user = $user ?? wp_get_current_user();
     }
diff --git a/src/Factories/Conditions/HasCapFactory.php b/src/Factories/Conditions/HasCapFactory.php
index 6945aea..baa68a0 100644
--- a/src/Factories/Conditions/HasCapFactory.php
+++ b/src/Factories/Conditions/HasCapFactory.php
@@ -69,7 +69,7 @@ public function make(mixed $value = null, iterable $options = []): Condition
      *
      * @return WP_User|false The currently logged-in user, or false if no user is logged in.
      */
-    protected function getCurrentUser(): WP_User|false
+    protected function getCurrentUser()
     {
         return wp_get_current_user();
     }
diff --git a/src/Factories/Middleware/UserHasCapFactory.php b/src/Factories/Middleware/UserHasCapFactory.php
index 34a284e..d19973c 100644
--- a/src/Factories/Middleware/UserHasCapFactory.php
+++ b/src/Factories/Middleware/UserHasCapFactory.php
@@ -68,7 +68,7 @@ public function make(mixed $value = null, iterable $options = [])
      *
      * @return WP_User|false The currently logged-in user, or false if no user is logged in.
      */
-    protected function getCurrentUser(): WP_User|false
+    protected function getCurrentUser()
     {
         return wp_get_current_user();
     }
diff --git a/src/Factories/ResponseFactory.php b/src/Factories/ResponseFactory.php
index e32365a..1980d42 100644
--- a/src/Factories/ResponseFactory.php
+++ b/src/Factories/ResponseFactory.php
@@ -57,7 +57,7 @@ public function make(mixed $value = null, iterable $options = []): BaseResponse
      * @return Response
      * @throws BindingResolutionException
      */
-    private function mapResponse($value = null, BaseResponse|null $response = null): BaseResponse
+    private function mapResponse($value = null, $response = null): BaseResponse
     {
         if ($value instanceof BaseResponse) {
             return $value;
diff --git a/src/Middleware/Route.php b/src/Middleware/Route.php
index c86748e..b8ef704 100644
--- a/src/Middleware/Route.php
+++ b/src/Middleware/Route.php
@@ -32,7 +32,7 @@ class Route implements Middleware
      *
      * @return void
      */
-    public function __construct(callable|null $handler = null)
+    public function __construct( $handler = null)
     {
         if ($handler) {
             $this->handler = $handler;
diff --git a/src/Middleware/UserHasCap.php b/src/Middleware/UserHasCap.php
index 5c7c2e1..46ca79e 100644
--- a/src/Middleware/UserHasCap.php
+++ b/src/Middleware/UserHasCap.php
@@ -41,7 +41,7 @@ class UserHasCap implements Middleware
      * @param string|null $redirect_to The redirect_to parameter that specifies the target URL to redirect to after
      *                                completing the construction. It is set to null by default.
      */
-    public function __construct(string|iterable $capabilities, string|null $redirect_to = null)
+    public function __construct($capabilities, $redirect_to = null)
     {
         $this->capabilities = is_string($capabilities) ? explode(',', $capabilities) : $capabilities;
         $this->redirect_to  = $redirect_to;