diff --git a/tests/unit/Http/HttpRequestParserTest.php b/tests/unit/Http/HttpRequestParserTest.php
index 4df7d8d..6af8402 100644
--- a/tests/unit/Http/HttpRequestParserTest.php
+++ b/tests/unit/Http/HttpRequestParserTest.php
@@ -1,6 +1,5 @@
 <?php
 namespace Ratchet\Http;
-use Ratchet\Http\HttpRequestParser;
 
 /**
  * @covers Ratchet\Http\HttpRequestParser
@@ -46,6 +45,6 @@ class HttpRequestParserTest extends \PHPUnit_Framework_TestCase {
         $conn = $this->getMock('\Ratchet\ConnectionInterface');
         $return = $this->parser->onMessage($conn, "GET / HTTP/1.1\r\nHost: socketo.me\r\n\r\n");
 
-        $this->assertInstanceOf('\Guzzle\Http\Message\RequestInterface', $return);
+        $this->assertInstanceOf('\Psr\Http\Message\RequestInterface', $return);
     }
 }
diff --git a/tests/unit/Http/OriginCheckTest.php b/tests/unit/Http/OriginCheckTest.php
index 34db439..c1c4012 100644
--- a/tests/unit/Http/OriginCheckTest.php
+++ b/tests/unit/Http/OriginCheckTest.php
@@ -9,8 +9,8 @@ class OriginCheckTest extends AbstractMessageComponentTestCase {
     protected $_reqStub;
 
     public function setUp() {
-        $this->_reqStub = $this->getMock('Guzzle\Http\Message\RequestInterface');
-        $this->_reqStub->expects($this->any())->method('getHeader')->will($this->returnValue('localhost'));
+        $this->_reqStub = $this->getMock('Psr\Http\Message\RequestInterface');
+        $this->_reqStub->expects($this->any())->method('getHeader')->will($this->returnValue(['localhost']));
 
         parent::setUp();
 
@@ -34,7 +34,7 @@ class OriginCheckTest extends AbstractMessageComponentTestCase {
     }
 
     public function testCloseOnNonMatchingOrigin() {
-        $this->_serv->allowedOrigins = array('socketo.me');
+        $this->_serv->allowedOrigins = ['socketo.me'];
         $this->_conn->expects($this->once())->method('close');
 
         $this->_serv->onOpen($this->_conn, $this->_reqStub);