diff --git a/src/Grant/AuthCodeGrant.php b/src/Grant/AuthCodeGrant.php
index 05ea1f38..b031e6e6 100644
--- a/src/Grant/AuthCodeGrant.php
+++ b/src/Grant/AuthCodeGrant.php
@@ -13,7 +13,7 @@ use League\OAuth2\Server\Repositories\UserRepositoryInterface;
 use League\OAuth2\Server\ResponseTypes\HtmlResponse;
 use League\OAuth2\Server\ResponseTypes\RedirectResponse;
 use League\OAuth2\Server\ResponseTypes\ResponseTypeInterface;
-use League\OAuth2\Server\TemplateRenderer\AbstractRenderer;
+use League\OAuth2\Server\TemplateRenderer\RendererInterface;
 use Psr\Http\Message\ServerRequestInterface;
 
 class AuthCodeGrant extends AbstractAuthorizeGrant
@@ -28,14 +28,14 @@ class AuthCodeGrant extends AbstractAuthorizeGrant
      * @param \League\OAuth2\Server\Repositories\RefreshTokenRepositoryInterface $refreshTokenRepository
      * @param \League\OAuth2\Server\Repositories\UserRepositoryInterface         $userRepository
      * @param \DateInterval                                                      $authCodeTTL
-     * @param \League\OAuth2\Server\TemplateRenderer\AbstractRenderer|null       $templateRenderer
+     * @param \League\OAuth2\Server\TemplateRenderer\RendererInterface|null      $templateRenderer
      */
     public function __construct(
         AuthCodeRepositoryInterface $authCodeRepository,
         RefreshTokenRepositoryInterface $refreshTokenRepository,
         UserRepositoryInterface $userRepository,
         \DateInterval $authCodeTTL,
-        AbstractRenderer $templateRenderer = null
+        RendererInterface $templateRenderer = null
     ) {
         $this->setAuthCodeRepository($authCodeRepository);
         $this->setRefreshTokenRepository($refreshTokenRepository);
diff --git a/src/Grant/ImplicitGrant.php b/src/Grant/ImplicitGrant.php
index 7da987d7..573d869f 100644
--- a/src/Grant/ImplicitGrant.php
+++ b/src/Grant/ImplicitGrant.php
@@ -10,16 +10,16 @@ use League\OAuth2\Server\Repositories\UserRepositoryInterface;
 use League\OAuth2\Server\ResponseTypes\HtmlResponse;
 use League\OAuth2\Server\ResponseTypes\RedirectResponse;
 use League\OAuth2\Server\ResponseTypes\ResponseTypeInterface;
-use League\OAuth2\Server\TemplateRenderer\AbstractRenderer;
+use League\OAuth2\Server\TemplateRenderer\RendererInterface;
 use Psr\Http\Message\ServerRequestInterface;
 
 class ImplicitGrant extends AbstractAuthorizeGrant
 {
     /**
-     * @param \League\OAuth2\Server\Repositories\UserRepositoryInterface   $userRepository
-     * @param \League\OAuth2\Server\TemplateRenderer\AbstractRenderer|null $templateRenderer
+     * @param \League\OAuth2\Server\Repositories\UserRepositoryInterface    $userRepository
+     * @param \League\OAuth2\Server\TemplateRenderer\RendererInterface|null $templateRenderer
      */
-    public function __construct(UserRepositoryInterface $userRepository, AbstractRenderer $templateRenderer = null)
+    public function __construct(UserRepositoryInterface $userRepository, RendererInterface $templateRenderer = null)
     {
         $this->setUserRepository($userRepository);
         $this->refreshTokenTTL = new \DateInterval('P1M');