diff --git a/composer.json b/composer.json
index 764c3373..e0551eb3 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,6 @@
     "amocrm/oauth2-amocrm": "^3.0",
     "fig/http-message-util": "1.*",
     "guzzlehttp/guzzle": "6.* || 7.*",
-    "lcobucci/clock": "1.1.0 ||^2.0.0",
     "lcobucci/jwt": "^3.4.6 || ^4.0.4 || ^5.0",
     "nesbot/carbon": "^2.72.6 || ^3.8.4",
     "ramsey/uuid": "^3 || ^4",
diff --git a/src/AmoCRM/OAuth/AmoCRMOAuth.php b/src/AmoCRM/OAuth/AmoCRMOAuth.php
index d5a52c6a..64c60343 100755
--- a/src/AmoCRM/OAuth/AmoCRMOAuth.php
+++ b/src/AmoCRM/OAuth/AmoCRMOAuth.php
@@ -17,6 +17,8 @@
 use AmoCRM\Exceptions\AmoCRMoAuthApiException;
 use AmoCRM\Exceptions\BadTypeException;
 use AmoCRM\OAuth2\Client\Provider\AmoCRM;
+use DateTimeImmutable;
+use DateTimeZone;
 use Exception;
 use Fig\Http\Message\StatusCodeInterface;
 use GuzzleHttp\ClientInterface;
@@ -24,8 +26,6 @@
 use GuzzleHttp\Exception\GuzzleException;
 use GuzzleHttp\Exception\TooManyRedirectsException;
 use GuzzleHttp\Psr7\Uri;
-use Lcobucci\Clock\FrozenClock;
-use Lcobucci\Clock\SystemClock;
 use Lcobucci\JWT\Configuration;
 use Lcobucci\JWT\Signer\Hmac\Sha256;
 use Lcobucci\JWT\Signer\Hmac\Sha512;
@@ -40,6 +40,7 @@
 use League\OAuth2\Client\Provider\ResourceOwnerInterface;
 use League\OAuth2\Client\Token\AccessToken;
 use League\OAuth2\Client\Token\AccessTokenInterface;
+use Psr\Clock\ClockInterface;
 use RuntimeException;
 use Throwable;
 use Lcobucci\JWT\Validation\Constraint\StrictValidAt;
@@ -717,11 +718,12 @@ private function createValidAtConstraint(): Constraint
 
         foreach ($availableConstraints as $constraintClass) {
             if (class_exists($constraintClass)) {
-                $clockClass = class_exists(FrozenClock::class)
-                    ? FrozenClock::class
-                    : SystemClock::class;
-
-                return new $constraintClass($clockClass::fromUTC());
+                return new $constraintClass(new class implements ClockInterface {
+                    public function now(): DateTimeImmutable
+                    {
+                        return new DateTimeImmutable('now', new DateTimeZone('UTC'));
+                    }
+                });
             }
         }