diff --git a/tests/AuthorizationServerTest.php b/tests/AuthorizationServerTest.php
index e0f45d98..7e83ee5e 100644
--- a/tests/AuthorizationServerTest.php
+++ b/tests/AuthorizationServerTest.php
@@ -148,7 +148,7 @@ class AuthorizationServerTest extends TestCase
     {
         $client = new ClientEntity();
         $client->setRedirectUri('http://foo/bar');
-        $client->setIsConfidential();
+        $client->setConfidential();
         $clientRepositoryMock = $this->getMockBuilder(ClientRepositoryInterface::class)->getMock();
         $clientRepositoryMock->method('getClientEntity')->willReturn($client);
 
diff --git a/tests/Grant/AuthCodeGrantTest.php b/tests/Grant/AuthCodeGrantTest.php
index b0652d00..867a08d9 100644
--- a/tests/Grant/AuthCodeGrantTest.php
+++ b/tests/Grant/AuthCodeGrantTest.php
@@ -84,7 +84,7 @@ class AuthCodeGrantTest extends TestCase
     {
         $client = new ClientEntity();
         $client->setRedirectUri('http://foo/bar');
-        $client->setIsConfidential();
+        $client->setConfidential();
 
         $clientRepositoryMock = $this->getMockBuilder(ClientRepositoryInterface::class)->getMock();
         $clientRepositoryMock->method('getClientEntity')->willReturn($client);
@@ -124,7 +124,7 @@ class AuthCodeGrantTest extends TestCase
     {
         $client = new ClientEntity();
         $client->setRedirectUri(['http://foo/bar']);
-        $client->setIsConfidential();
+        $client->setConfidential();
         $clientRepositoryMock = $this->getMockBuilder(ClientRepositoryInterface::class)->getMock();
         $clientRepositoryMock->method('getClientEntity')->willReturn($client);
 
diff --git a/tests/Stubs/ClientEntity.php b/tests/Stubs/ClientEntity.php
index 9d34edb0..d908248b 100644
--- a/tests/Stubs/ClientEntity.php
+++ b/tests/Stubs/ClientEntity.php
@@ -15,7 +15,7 @@ class ClientEntity implements ClientEntityInterface
         $this->redirectUri = $uri;
     }
 
-    public function setIsConfidential()
+    public function setConfidential()
     {
         $this->isConfidential = true;
     }