diff --git a/src/Routing/RouteBuilder.php b/src/Routing/RouteBuilder.php
index 47a96367d57..74e720d2be4 100644
--- a/src/Routing/RouteBuilder.php
+++ b/src/Routing/RouteBuilder.php
@@ -23,6 +23,7 @@
 use Cake\Routing\Route\RedirectRoute;
 use Cake\Routing\Route\Route;
 use Cake\Utility\Inflector;
+use Closure;
 use InvalidArgumentException;
 use RuntimeException;
 
@@ -344,14 +345,14 @@ public function namePrefix(?string $value = null): string
      *   is available at `/posts`
      *
      * @param string $name A controller name to connect resource routes for.
-     * @param array|callable $options Options to use when generating REST routes, or a callback.
-     * @param callable|null $callback An optional callback to be executed in a nested scope. Nested
+     * @param array|\Closure $options Options to use when generating REST routes, or a callback.
+     * @param \Closure|null $callback An optional callback to be executed in a nested scope. Nested
      *   scopes inherit the existing path and 'id' parameter.
      * @return $this
      */
-    public function resources(string $name, $options = [], $callback = null)
+    public function resources(string $name, $options = [], ?Closure $callback = null)
     {
-        if (is_callable($options)) {
+        if ($options instanceof Closure) {
             $callback = $options;
             $options = [];
         }
@@ -422,7 +423,7 @@ public function resources(string $name, $options = [], $callback = null)
             $this->connect($url, $params, $routeOptions);
         }
 
-        if (is_callable($callback)) {
+        if ($callback !== null) {
             $idName = Inflector::singularize(Inflector::underscore($name)) . '_id';
             $path = '/' . $options['path'] . '/:' . $idName;
             $this->scope($path, [], $callback);
@@ -849,18 +850,18 @@ public function redirect(string $route, $url, array $options = []): Route
      * ```
      *
      * @param string $name The prefix name to use.
-     * @param array|callable $params An array of routing defaults to add to each connected route.
-     *   If you have no parameters, this argument can be a callable.
-     * @param callable|null $callback The callback to invoke that builds the prefixed routes.
+     * @param array|\Closure $params An array of routing defaults to add to each connected route.
+     *   If you have no parameters, this argument can be a Closure.
+     * @param \Closure|null $callback The callback to invoke that builds the prefixed routes.
      * @return $this
      * @throws \InvalidArgumentException If a valid callback is not passed
      * @psalm-suppress PossiblyInvalidArrayAccess
      */
-    public function prefix(string $name, $params = [], ?callable $callback = null)
+    public function prefix(string $name, $params = [], ?Closure $callback = null)
     {
         if ($callback === null) {
-            if (!is_callable($params)) {
-                throw new InvalidArgumentException('A valid callback is expected');
+            if (!$params instanceof Closure) {
+                throw new InvalidArgumentException('A valid Closure is expected');
             }
             $callback = $params;
             $params = [];
@@ -894,16 +895,16 @@ public function prefix(string $name, $params = [], ?callable $callback = null)
      * prepended, and have a matching plugin routing key set.
      *
      * @param string $name The plugin name to build routes for
-     * @param array|callable $options Either the options to use, or a callback
-     * @param callable|null $callback The callback to invoke that builds the plugin routes
+     * @param array|\Closure $options Either the options to use, or a callback
+     * @param \Closure|null $callback The callback to invoke that builds the plugin routes
      *   Only required when $options is defined.
      * @return $this
      */
-    public function plugin(string $name, $options = [], ?callable $callback = null)
+    public function plugin(string $name, $options = [], ?Closure $callback = null)
     {
         if ($callback === null) {
-            if (!is_callable($options)) {
-                throw new InvalidArgumentException('A valid callback is expected');
+            if (!$options instanceof Closure) {
+                throw new InvalidArgumentException('A valid Closure is expected');
             }
             $callback = $options;
             $options = [];
@@ -924,21 +925,20 @@ public function plugin(string $name, $options = [], ?callable $callback = null)
      * to the supplied parameters.
      *
      * @param string $path The path to create a scope for.
-     * @param array|callable $params Either the parameters to add to routes, or a callback.
-     * @param callable|null $callback The callback to invoke that builds the plugin routes.
+     * @param array|\Closure $params Either the parameters to add to routes, or a callback.
+     * @param \Closure|null $callback The callback to invoke that builds the plugin routes.
      *   Only required when $params is defined.
      * @return $this
-     * @throws \InvalidArgumentException when there is no callable parameter.
+     * @throws \InvalidArgumentException when there is no callback parameter.
      */
-    public function scope(string $path, $params, $callback = null)
+    public function scope(string $path, $params, ?Closure $callback = null)
     {
-        if (is_callable($params)) {
+        if (!is_array($params)) {
             $callback = $params;
             $params = [];
         }
-        if (!is_callable($callback)) {
-            $msg = 'Need a callable function/object to connect routes.';
-            throw new InvalidArgumentException($msg);
+        if (!$callback instanceof Closure) {
+            throw new InvalidArgumentException('Need a Closure to connect routes.');
         }
 
         if ($this->_path !== '/') {
@@ -987,7 +987,7 @@ public function fallbacks(?string $routeClass = null)
      * scope or any child scopes that share the same RouteCollection.
      *
      * @param string $name The name of the middleware. Used when applying middleware to a scope.
-     * @param callable|string $middleware The middleware callable or class name to register.
+     * @param \Closure|string $middleware The middleware Closure or class name to register.
      * @return $this
      * @see \Cake\Routing\RouteCollection
      */
diff --git a/src/Routing/RouteCollection.php b/src/Routing/RouteCollection.php
index 3a471f3ef6a..db3858ea4cb 100644
--- a/src/Routing/RouteCollection.php
+++ b/src/Routing/RouteCollection.php
@@ -406,7 +406,7 @@ public function setExtensions(array $extensions, bool $merge = true)
      * scope or any child scopes that share the same RouteCollection.
      *
      * @param string $name The name of the middleware. Used when applying middleware to a scope.
-     * @param callable|string $middleware The middleware callable or class name to register.
+     * @param \Closure|string $middleware The middleware Closure or class name to register.
      * @return $this
      * @throws \RuntimeException
      */
diff --git a/src/Routing/Router.php b/src/Routing/Router.php
index 12c58ad3992..2a444d8333c 100644
--- a/src/Routing/Router.php
+++ b/src/Routing/Router.php
@@ -20,6 +20,7 @@
 use Cake\Http\ServerRequest;
 use Cake\Routing\Exception\MissingRouteException;
 use Cake\Utility\Inflector;
+use Closure;
 use Exception;
 use ReflectionFunction;
 use ReflectionMethod;
@@ -145,7 +146,7 @@ class Router
      * The stack of URL filters to apply against routing URLs before passing the
      * parameters to the route collection.
      *
-     * @var callable[]
+     * @var \Closure[]
      */
     protected static $_urlFilters = [];
 
@@ -322,10 +323,10 @@ public static function resetRoutes(): void
      * });
      * ```
      *
-     * @param callable $function The function to add
+     * @param \Closure $function The function to add
      * @return void
      */
-    public static function addUrlFilter(callable $function): void
+    public static function addUrlFilter(Closure $function): void
     {
         static::$_urlFilters[] = $function;
     }
@@ -781,13 +782,13 @@ public static function createRouteBuilder(string $path, array $options = []): Ro
      *
      * @param string $path The path prefix for the scope. This path will be prepended
      *   to all routes connected in the scoped collection.
-     * @param array|callable $params An array of routing defaults to add to each connected route.
-     *   If you have no parameters, this argument can be a callable.
-     * @param callable|null $callback The callback to invoke with the scoped collection.
-     * @throws \InvalidArgumentException When an invalid callable is provided.
+     * @param array|\Closure $params An array of routing defaults to add to each connected route.
+     *   If you have no parameters, this argument can be a Closure.
+     * @param \Closure|null $callback The callback to invoke with the scoped collection.
+     * @throws \InvalidArgumentException When an invalid callback is provided.
      * @return void
      */
-    public static function scope(string $path, $params = [], $callback = null): void
+    public static function scope(string $path, $params = [], ?Closure $callback = null): void
     {
         $options = [];
         if (is_array($params)) {
@@ -816,15 +817,15 @@ public static function scope(string $path, $params = [], $callback = null): void
      * to the `Controller\Admin\Api\` namespace.
      *
      * @param string $name The prefix name to use.
-     * @param array|callable $params An array of routing defaults to add to each connected route.
-     *   If you have no parameters, this argument can be a callable.
-     * @param callable|null $callback The callback to invoke that builds the prefixed routes.
+     * @param array|\Closure $params An array of routing defaults to add to each connected route.
+     *   If you have no parameters, this argument can be a Closure.
+     * @param \Closure|null $callback The callback to invoke that builds the prefixed routes.
      * @return void
      */
-    public static function prefix(string $name, $params = [], ?callable $callback = null): void
+    public static function prefix(string $name, $params = [], ?Closure $callback = null): void
     {
         if ($callback === null) {
-            /** @var callable $callback */
+            /** @var \Closure $callback */
             $callback = $params;
             $params = [];
         }
@@ -850,16 +851,16 @@ public static function prefix(string $name, $params = [], ?callable $callback =
      * prepended, and have a matching plugin routing key set.
      *
      * @param string $name The plugin name to build routes for
-     * @param array|callable $options Either the options to use, or a callback
-     * @param callable|null $callback The callback to invoke that builds the plugin routes.
+     * @param array|\Closure $options Either the options to use, or a callback
+     * @param \Closure|null $callback The callback to invoke that builds the plugin routes.
      *   Only required when $options is defined
      * @return void
      * @psalm-suppress PossiblyInvalidArrayAccess
      */
-    public static function plugin(string $name, $options = [], ?callable $callback = null): void
+    public static function plugin(string $name, $options = [], ?Closure $callback = null): void
     {
         if ($callback === null) {
-            /** @var callable $callback */
+            /** @var \Closure $callback */
             $callback = $options;
             $options = [];
         }
diff --git a/tests/TestCase/Routing/RouterTest.php b/tests/TestCase/Routing/RouterTest.php
index 003ecef45ff..912760961b6 100644
--- a/tests/TestCase/Routing/RouterTest.php
+++ b/tests/TestCase/Routing/RouterTest.php
@@ -1158,7 +1158,9 @@ public function testUrlGenerationWithUrlFilterFailureMethod()
         ]);
         Router::setRequest($request);
 
-        Router::addUrlFilter([$this, 'badFilter']);
+        Router::addUrlFilter(function () {
+            return $this->badFilter();
+        });
         Router::url(['controller' => 'posts', 'action' => 'index', 'lang' => 'en']);
     }