diff --git a/test/ClientTest.php b/test/ClientTest.php
index ac6dd8f..3a2aa8e 100644
--- a/test/ClientTest.php
+++ b/test/ClientTest.php
@@ -73,7 +73,7 @@ public function testGettingDefaultHttpClient()
     {
         $xmlrpcClient = new Client('http://foo');
         $httpClient = $xmlrpcClient->getHttpClient();
-        $this->assertType('Zend\\Http\\Client', $httpClient);
+        $this->assertInstanceOf('Zend\\Http\\Client', $httpClient);
         $this->assertSame($httpClient, $xmlrpcClient->getHttpClient());
     }
 
@@ -107,8 +107,8 @@ public function testLastRequestAndResponseAreSetAfterRpcMethodCall()
         $this->setServerResponseTo(true);
         $this->xmlrpcClient->call('foo');
 
-        $this->assertType('Zend\\XmlRpc\\Request', $this->xmlrpcClient->getLastRequest());
-        $this->assertType('Zend\\XmlRpc\\Response', $this->xmlrpcClient->getLastResponse());
+        $this->assertInstanceOf('Zend\\XmlRpc\\Request', $this->xmlrpcClient->getLastRequest());
+        $this->assertInstanceOf('Zend\\XmlRpc\\Response', $this->xmlrpcClient->getLastResponse());
     }
 
     public function testSuccessfulRpcMethodCallWithNoParameters()
@@ -336,8 +336,7 @@ public function testRpcMethodCallThrowsOnXmlRpcFault()
 
     public function testGetProxyReturnsServerProxy()
     {
-        $class = 'Zend\\XmlRpc\\Client\\ServerProxy';
-        $this->assertType($class, $this->xmlrpcClient->getProxy());
+        $this->assertInstanceOf('Zend\\XmlRpc\\Client\\ServerProxy', $this->xmlrpcClient->getProxy());
     }
 
     public function testRpcMethodCallsThroughServerProxy()
@@ -390,7 +389,7 @@ public function testGettingDefaultIntrospector()
     {
         $xmlrpcClient = new Client('http://foo');
         $introspector = $xmlrpcClient->getIntrospector();
-        $this->assertType('Zend\\XmlRpc\\Client\\ServerIntrospection', $introspector);
+        $this->assertInstanceOf('Zend\\XmlRpc\\Client\\ServerIntrospection', $introspector);
         $this->assertSame($introspector, $xmlrpcClient->getIntrospector());
     }
 
diff --git a/test/ResponseTest.php b/test/ResponseTest.php
index 8b29f72..50c7596 100644
--- a/test/ResponseTest.php
+++ b/test/ResponseTest.php
@@ -107,7 +107,7 @@ public function testGetFault()
     {
         $this->assertNull($this->_response->getFault());
         $this->_response->loadXml('foo');
-        $this->assertType('Zend\\XmlRpc\\Fault', $this->_response->getFault());
+        $this->assertInstanceOf('Zend\\XmlRpc\\Fault', $this->_response->getFault());
     }
 
     /**
diff --git a/test/ServerTest.php b/test/ServerTest.php
index a76cab2..73ec5b2 100644
--- a/test/ServerTest.php
+++ b/test/ServerTest.php
@@ -163,7 +163,7 @@ public function testSettingClassWithArguments()
         $request = new Request();
         $request->setMethod('test.test4');
         $response = $this->_server->handle($request);
-        $this->assertNotType('Zend\\XmlRpc\\Fault', $response);
+        $this->assertNotInstanceOf('Zend\\XmlRpc\\Fault', $response);
         $this->assertSame(
             array('test1' => 'argv-argument',
                 'test2' => null,
@@ -181,7 +181,7 @@ public function testSettingClassWithArgumentsOnlyPassingToConstructor()
         $request->setMethod('test.test4');
         $request->setParams(array('foo'));
         $response = $this->_server->handle($request);
-        $this->assertNotType('Zend\\XmlRpc\\Fault', $response);
+        $this->assertNotInstanceOf('Zend\\XmlRpc\\Fault', $response);
         $this->assertSame(array('test1' => 'a1', 'test2' => 'a2', 'arg' => array('foo')), $response->getReturnValue());
     }
 
@@ -241,7 +241,7 @@ public function testCallingInvalidMethod()
         $request = new Request();
         $request->setMethod('invalid');
         $response = $this->_server->handle($request);
-        $this->assertType('Zend\\XmlRpc\\Fault', $response);
+        $this->assertInstanceOf('Zend\\XmlRpc\\Fault', $response);
         $this->assertSame('Method "invalid" does not exist', $response->getMessage());
         $this->assertSame(620, $response->getCode());
     }
diff --git a/test/ValueTest.php b/test/ValueTest.php
index 861a45b..ddbcc9c 100644
--- a/test/ValueTest.php
+++ b/test/ValueTest.php
@@ -840,7 +840,7 @@ public function assertXmlRpcType($type, $object)
             $type = 'arrayValue';
         }
         $type = 'Zend\\XmlRpc\\Value\\' . ucfirst($type);
-        $this->assertType($type, $object);
+        $this->assertInstanceOf($type, $object);
     }
 
     public function wrapXml($xml)