diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index 1fb4480..fc3b73f 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -2,4 +2,8 @@
 
 This project welcomes contributions. 
 
+New features should be covered by unit tests and linting.
+Including tests increases your chances of getting the PR accepted.
+I might merge even if tests are missing, but it will likely take more time. 
 
+Run `composer check` before submitting a pull request and fix what you can there to ensure that the code is up to the standard.
diff --git a/src/AccessToken.php b/src/AccessToken.php
index 572b667..78637b2 100644
--- a/src/AccessToken.php
+++ b/src/AccessToken.php
@@ -44,14 +44,12 @@ public function getExpiresIn(): int
 
     public function getHttpClient(PendingRequest $httpClient): PendingRequest
     {
-
         return match ($this->tokenType) {
             self::TYPE_BEARER => $httpClient->withToken($this->accessToken),
             self::TYPE_QUERY  => $httpClient->withQueryParameters([$this->tokenName => $this->accessToken]),
             self::TYPE_CUSTOM => $this->resolveCustomAuth($httpClient),
             default           => throw new InvalidArgumentException('Invalid auth type')
         };
-
     }
 
     protected function resolveCustomAuth(PendingRequest $httpClient): PendingRequest
diff --git a/tests/TestCase.php b/tests/TestCase.php
index ed329e9..79118f5 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -16,7 +16,6 @@ protected function setUp(): void
 
         Http::fake(
             static function (Request $request) {
-
                 if ($request->url() === 'https://example.com/oauth/token') {
                     if ($request->token = 'my_refresh_token') {
                         return Http::response([
diff --git a/tests/Unit/RefreshTokenTest.php b/tests/Unit/RefreshTokenTest.php
index 87723a6..701bdde 100644
--- a/tests/Unit/RefreshTokenTest.php
+++ b/tests/Unit/RefreshTokenTest.php
@@ -9,7 +9,6 @@
 use Pelmered\LaravelHttpOAuthHelper\RefreshToken;
 
 describe('Refresh Token Class', function () {
-
     test('refresh token basic', function () {
         Cache::clear();
         $accessToken = app(RefreshToken::class)(
@@ -139,7 +138,6 @@
     });
 
     test('refresh token with expiry callback', function () {
-
         $accessToken = app(RefreshToken::class)(
             'https://example.com/oauth/token',
             new Credentials([
@@ -158,7 +156,6 @@
         Http::assertSent(static function (Request $request) {
             return $request->url() === 'https://example.com/oauth/token' && $request['grant_type'] === 'client_credentials' && $request['scope'] === 'scope1 scope2';
         });
-
     });
 
     test('get access token from custom key', function () {
@@ -213,5 +210,4 @@
             ]
         );
     });
-
 })->done(assignee: 'pelmered');
diff --git a/tests/Unit/TokenStoreTest.php b/tests/Unit/TokenStoreTest.php
index f4dd01b..1162587 100644
--- a/tests/Unit/TokenStoreTest.php
+++ b/tests/Unit/TokenStoreTest.php
@@ -8,7 +8,6 @@
 use Pelmered\LaravelHttpOAuthHelper\TokenStore;
 
 it('reads and stores a token in cache', function () {
-
     Cache::clear();
     Cache::spy();