diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f449dd9..874d1ee 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        laravel: [9, 10]
+        laravel: [10]
 
     steps:
     - uses: actions/checkout@v2
diff --git a/composer.json b/composer.json
index 890e2a1..01ce6b7 100644
--- a/composer.json
+++ b/composer.json
@@ -23,10 +23,10 @@
         "php": "^8.1"
     },
     "require-dev": {
-        "orchestra/testbench": "^7.0|^8.0",
-        "nunomaduro/larastan": "^1.0|^2.4",
-        "pestphp/pest": "^1.2|^2.0",
-        "pestphp/pest-plugin-laravel": "^1.0|^2.0"
+        "orchestra/testbench": "^8.0",
+        "larastan/larastan": "^2.4",
+        "pestphp/pest": "^2.0",
+        "pestphp/pest-plugin-laravel": "^2.0"
     },
     "minimum-stability": "dev",
     "prefer-stable": true,
diff --git a/src/Comparable.php b/src/Comparable.php
index d47de19..c655912 100644
--- a/src/Comparable.php
+++ b/src/Comparable.php
@@ -4,6 +4,10 @@ declare(strict_types=1);
 
 namespace ArchTech\Enums;
 
+use Exception;
+use Iterator;
+use IteratorAggregate;
+
 trait Comparable
 {
     public function is(mixed $enum): bool
@@ -16,12 +20,30 @@ trait Comparable
         return ! $this->is($enum);
     }
 
-    public function in(array $enums): bool
+    public function in(array|object $enums): bool
     {
-        return [] !== array_filter($enums, fn (mixed $enum) => $this->is($enum));
+        $iterator = $enums;
+
+        if (! is_array($enums)) {
+            if ($enums instanceof Iterator) {
+                $iterator = $enums;
+            } elseif ($enums instanceof IteratorAggregate) {
+                $iterator = $enums->getIterator();
+            } else {
+                throw new Exception('in() expects an iterable value');
+            }
+        }
+
+        foreach ($iterator as $item) {
+            if ($item === $this) {
+                return true;
+            }
+        }
+
+        return false;
     }
 
-    public function notIn(array $enums): bool
+    public function notIn(array|object $enums): bool
     {
         return ! $this->in($enums);
     }
diff --git a/tests/Pest/ComparableTest.php b/tests/Pest/ComparableTest.php
index bebcf7c..11c980f 100644
--- a/tests/Pest/ComparableTest.php
+++ b/tests/Pest/ComparableTest.php
@@ -1,51 +1,44 @@
 <?php
 
-it('compare equal enum', function () {
-    expect(Status::PENDING->is(Status::PENDING))
-        ->toBeTrue()
-        ->and(Status::PENDING->is(Status::DONE))
-        ->toBeFalse()
-        ->and(Role::ADMIN->is(Role::ADMIN))
-        ->toBeTrue()
-        ->and(Role::ADMIN->is(Role::GUEST))
-        ->toBeFalse()
-        ->and(Role::ADMIN->is('admin'))
-        ->toBeFalse();
+test('the is method checks for equality', function () {
+    expect(Status::PENDING->is(Status::PENDING))->toBeTrue();
+    expect(Status::PENDING->is(Status::DONE))->toBeFalse();
+    expect(Role::ADMIN->is(Role::ADMIN))->toBeTrue();
+
+    expect(Role::ADMIN->is(Role::GUEST))->toBeFalse();
+    expect(Role::ADMIN->is('admin'))->toBeFalse();
 });
 
-it('compare not equal enum', function () {
-    expect(Status::PENDING->isNot(Status::DONE))
-        ->toBeTrue()
-        ->and(Status::PENDING->isNot(Status::PENDING))
-        ->toBeFalse()
-        ->and(Status::PENDING->isNot(Role::ADMIN))
-        ->toBeTrue()
-        ->and(Role::ADMIN->isNot(Role::GUEST))
-        ->toBeTrue()
-        ->and(Role::ADMIN->isNot(Role::ADMIN))
-        ->toBeFalse()
-        ->and(Role::ADMIN->isNot('admin'))
-        ->toBeTrue();
+it('the isNot method checks for inequality', function () {
+    expect(Status::PENDING->isNot(Status::DONE))->toBeTrue();
+    expect(Status::PENDING->isNot(Status::PENDING))->toBeFalse();
+    expect(Status::PENDING->isNot(Role::ADMIN))->toBeTrue();
+    expect(Role::ADMIN->isNot(Role::GUEST))->toBeTrue();
+
+    expect(Role::ADMIN->isNot(Role::ADMIN))->toBeFalse();
+    expect(Role::ADMIN->isNot('admin'))->toBeTrue();
 });
 
-it('compare in enums', function () {
-    expect(Status::PENDING->in([Status::PENDING, Status::DONE]))
-        ->toBeTrue()
-        ->and(Status::PENDING->in([Status::DONE]))
-        ->toBeFalse()
-        ->and(Status::PENDING->in([Role::ADMIN, Role::GUEST]))
-        ->toBeFalse()
-        ->and(Role::ADMIN->in([Role::ADMIN]))
-        ->toBeTrue();
+it('the in method checks for presence in an array', function () {
+    expect(Status::PENDING->in([Status::PENDING, Status::DONE]))->toBeTrue();
+    expect(Role::ADMIN->in([Role::ADMIN]))->toBeTrue();
+
+    expect(Status::PENDING->in([Status::DONE]))->toBeFalse();
+    expect(Status::PENDING->in([Role::ADMIN, Role::GUEST]))->toBeFalse();
 });
 
-it('compare not in enums', function () {
-    expect(Status::PENDING->notIn([Status::DONE]))
-        ->toBeTrue()
-        ->and(Status::PENDING->notIn([Status::PENDING, Status::DONE]))
-        ->toBeFalse()
-        ->and(Role::ADMIN->notIn([Role::GUEST]))
-        ->toBeTrue()
-        ->and(Role::ADMIN->notIn([Role::ADMIN, Role::GUEST]))
-        ->toBeFalse();
+it('the not in method checks for absence in an array', function () {
+    expect(Status::PENDING->notIn([Status::DONE]))->toBeTrue();
+    expect(Role::ADMIN->notIn([Role::GUEST]))->toBeTrue();
+
+    expect(Status::PENDING->notIn([Status::PENDING, Status::DONE]))->toBeFalse();
+    expect(Role::ADMIN->notIn([Role::ADMIN, Role::GUEST]))->toBeFalse();
+});
+
+test('the in and notIn methods work with Laravel collections', function () {
+    expect(Status::PENDING->in(collect([Status::PENDING, Status::DONE])))->toBeTrue();
+    expect(Role::ADMIN->in(collect([Status::PENDING, Role::GUEST])))->toBeFalse();
+
+    expect(Status::DONE->notIn(collect([Status::PENDING])))->toBeTrue();
+    expect(Role::ADMIN->notIn(collect([Role::ADMIN, Status::PENDING])))->toBeFalse();
 });