diff --git a/src/AuthorizationServer.php b/src/AuthorizationServer.php
index 6eb7b5d6..6b7a972b 100644
--- a/src/AuthorizationServer.php
+++ b/src/AuthorizationServer.php
@@ -156,7 +156,7 @@ class AuthorizationServer implements EmitterAwareInterface
      * @param \League\OAuth2\Server\RequestTypes\AuthorizationRequest $authRequest
      * @param \Psr\Http\Message\ResponseInterface                     $response
      *
-     * @return \League\OAuth2\Server\ResponseTypes\ResponseTypeInterface
+     * @return \Psr\Http\Message\ResponseInterface
      */
     public function completeAuthorizationRequest(AuthorizationRequest $authRequest, ResponseInterface $response)
     {
diff --git a/src/Grant/ImplicitGrant.php b/src/Grant/ImplicitGrant.php
index 0bd33fa6..976acefb 100644
--- a/src/Grant/ImplicitGrant.php
+++ b/src/Grant/ImplicitGrant.php
@@ -41,7 +41,7 @@ class ImplicitGrant extends AbstractAuthorizeGrant
      */
     public function setRefreshTokenTTL(\DateInterval $refreshTokenTTL)
     {
-        throw new \LogicException('The Implicit Grant does nto return refresh tokens');
+        throw new \LogicException('The Implicit Grant does not return refresh tokens');
     }
 
     /**
@@ -51,7 +51,7 @@ class ImplicitGrant extends AbstractAuthorizeGrant
      */
     public function setRefreshTokenRepository(RefreshTokenRepositoryInterface $refreshTokenRepository)
     {
-        throw new \LogicException('The Implicit Grant does nto return refresh tokens');
+        throw new \LogicException('The Implicit Grant does not return refresh tokens');
     }
 
     /**