diff --git a/composer.json b/composer.json
index be27a33e..4d3e87af 100644
--- a/composer.json
+++ b/composer.json
@@ -45,7 +45,7 @@
         "php": "^7.2|^8",
         "php-http/client-implementation": "^1",
         "php-http/message": "^1.5",
-        "php-http/message-factory": "^1.1",
+        "psr/http-factory": "^1.0.2",
         "php-http/discovery": "^1.14",
         "symfony/http-foundation": "^2.1|^3|^4|^5|^6|^7",
         "moneyphp/money": "^3.1|^4.0.3"
diff --git a/src/Common/Http/Client.php b/src/Common/Http/Client.php
index abd4a53d..590995ea 100644
--- a/src/Common/Http/Client.php
+++ b/src/Common/Http/Client.php
@@ -6,10 +6,10 @@
 use Http\Client\HttpClient;
 use Http\Discovery\HttpClientDiscovery;
 use Http\Discovery\MessageFactoryDiscovery;
-use Http\Message\RequestFactory;
 use Omnipay\Common\Http\Exception\NetworkException;
 use Omnipay\Common\Http\Exception\RequestException;
 use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\RequestFactoryInterface;
 use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\StreamInterface;
 use Psr\Http\Message\UriInterface;
@@ -25,33 +25,25 @@ class Client implements ClientInterface
     private $httpClient;
 
     /**
-     * @var RequestFactory
+     * @var RequestFactoryInterface
      */
     private $requestFactory;
 
-    public function __construct($httpClient = null, RequestFactory $requestFactory = null)
+    public function __construct($httpClient = null, RequestFactoryInterface $requestFactory = null)
     {
         $this->httpClient = $httpClient ?: HttpClientDiscovery::find();
         $this->requestFactory = $requestFactory ?: MessageFactoryDiscovery::find();
     }
 
     /**
-     * @param $method
-     * @param $uri
-     * @param array $headers
-     * @param string|array|resource|StreamInterface|null $body
-     * @param string $protocolVersion
+     * @param string $method
+     * @param string|UriInterface $uri
      * @return ResponseInterface
      * @throws \Http\Client\Exception
      */
     public function request(
-        $method,
-        $uri,
-        array $headers = [],
-        $body = null,
-        $protocolVersion = '1.1'
-    ) {
-        $request = $this->requestFactory->createRequest($method, $uri, $headers, $body, $protocolVersion);
+        $method, $uri) {
+        $request = $this->requestFactory->createRequest($method, $uri);
 
         return $this->sendRequest($request);
     }
diff --git a/src/Common/Http/ClientInterface.php b/src/Common/Http/ClientInterface.php
index 73593957..3f5ae9db 100644
--- a/src/Common/Http/ClientInterface.php
+++ b/src/Common/Http/ClientInterface.php
@@ -15,9 +15,6 @@ interface ClientInterface
      *
      * @param string                               $method
      * @param string|UriInterface                  $uri
-     * @param array                                $headers
-     * @param resource|string|StreamInterface|null $body
-     * @param string                               $protocolVersion
      *
      * @throws RequestException when the HTTP client is passed a request that is invalid and cannot be sent.
      * @throws NetworkException if there is an error with the network or the remote server cannot be reached.
@@ -26,9 +23,6 @@ interface ClientInterface
      */
     public function request(
         $method,
-        $uri,
-        array $headers = [],
-        $body = null,
-        $protocolVersion = '1.1'
+        $uri
     );
 }
diff --git a/tests/Common/Http/ClientTest.php b/tests/Common/Http/ClientTest.php
index b2534824..c1dbace0 100644
--- a/tests/Common/Http/ClientTest.php
+++ b/tests/Common/Http/ClientTest.php
@@ -7,7 +7,7 @@
 use Mockery as m;
 use GuzzleHttp\Psr7\Request;
 use Http\Client\HttpClient;
-use Http\Message\RequestFactory;
+use Psr\Http\Message\RequestFactoryInterface as RequestFactory;
 use Omnipay\Common\Http\Exception\RequestException;
 use Omnipay\Tests\TestCase;
 
@@ -26,9 +26,6 @@ public function testSend()
         $mockFactory->shouldReceive('createRequest')->withArgs([
             'GET',
             '/path',
-            [],
-            null,
-            '1.1',
         ])->andReturn($request);
 
         $mockClient->shouldReceive('sendRequest')
@@ -52,9 +49,6 @@ public function testSendException()
         $mockFactory->shouldReceive('createRequest')->withArgs([
             'GET',
             '/path',
-            [],
-            null,
-            '1.1',
         ])->andReturn($request);
 
         $mockClient->shouldReceive('sendRequest')
@@ -79,9 +73,6 @@ public function testSendNetworkException()
         $mockFactory->shouldReceive('createRequest')->withArgs([
             'GET',
             '/path',
-            [],
-            null,
-            '1.1',
         ])->andReturn($request);
 
         $mockClient->shouldReceive('sendRequest')
@@ -106,9 +97,6 @@ public function testSendExceptionGetRequest()
         $mockFactory->shouldReceive('createRequest')->withArgs([
             'GET',
             '/path',
-            [],
-            null,
-            '1.1',
         ])->andReturn($request);
 
         $exception = new \Exception('Something went wrong');