diff --git a/_ide_helpers.php b/_ide_helpers.php
index 9f39f17..7748f20 100644
--- a/_ide_helpers.php
+++ b/_ide_helpers.php
@@ -5,7 +5,6 @@
 /** @noinspection PhpUnusedAliasInspection */
 
 namespace Illuminate\Testing {
-
     /**
      * @see \Spectator\Assertions
      *
@@ -25,7 +24,6 @@ class TestResponse
 }
 
 namespace Illuminate\Foundation\Testing {
-
     /**
      * @see \Spectator\Assertions
      *
diff --git a/src/Support/Format.php b/src/Support/Format.php
index 54f9df0..749d538 100644
--- a/src/Support/Format.php
+++ b/src/Support/Format.php
@@ -7,9 +7,13 @@ class Format
     // https://joshtronic.com/2013/09/02/how-to-use-colors-in-command-line-output/
 
     const TEXT_GREEN = '0;32';
+
     const TEXT_RED = '0;31';
+
     const TEXT_WHITE = '1;37';
+
     const TEXT_LIGHT_GREY = '0;37';
+
     const TEXT_DARK_GREY = '1;30';
 
     const STYLE_ITALIC = '3';
diff --git a/src/Validation/RequestValidator.php b/src/Validation/RequestValidator.php
index 719cea6..239e04d 100644
--- a/src/Validation/RequestValidator.php
+++ b/src/Validation/RequestValidator.php
@@ -149,6 +149,30 @@ protected function validateParameters()
         }
     }
 
+    /**
+     * @param  mixed  $parameter
+     * @param  string|null  $type
+     * @return mixed
+     */
+    private function castParameter($parameter, ?string $type)
+    {
+        if ($type === null) {
+            return $parameter;
+        }
+
+        if ($type === 'integer' && filter_var($parameter, FILTER_VALIDATE_INT, FILTER_NULL_ON_FAILURE) !== null) {
+            return (int) $parameter;
+        } elseif ($type === 'number' && filter_var($parameter, FILTER_VALIDATE_FLOAT, FILTER_NULL_ON_FAILURE) !== null) {
+            return (float) $parameter;
+        } elseif ($type === 'boolean' && filter_var($parameter, FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE) !== null) {
+            return filter_var($parameter, FILTER_VALIDATE_BOOLEAN);
+        } elseif ($type === 'string') {
+            return (string) $parameter;
+        }
+
+        return $parameter;
+    }
+
     /**
      * @throws RequestValidationException|SchemaValidationException
      */
diff --git a/tests/RequestValidatorTest.php b/tests/RequestValidatorTest.php
index 3b074af..9ca98f9 100644
--- a/tests/RequestValidatorTest.php
+++ b/tests/RequestValidatorTest.php
@@ -530,6 +530,9 @@ public function test_handles_query_parameters_int(): void
             return [];
         })->middleware(Middleware::class);
 
+        $this->getJson('/users-by-id/foo')
+            ->assertInvalidRequest();
+
         $this->getJson('/users-by-id/1')
             ->assertValidRequest();
     }
diff --git a/tests/TestCase.php b/tests/TestCase.php
index 0943691..047c35d 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -8,9 +8,13 @@
 abstract class TestCase extends Orchestra
 {
     const NULLABLE_MISSING = 0;
+
     const NULLABLE_EMPTY_STRING = 1;
+
     const NULLABLE_VALID = 2;
+
     const NULLABLE_INVALID = 3;
+
     const NULLABLE_NULL = 4;
 
     protected function getEnvironmentSetUp($app)