diff --git a/lib/Gitlab/HttpClient/Plugin/ApiVersion.php b/lib/Gitlab/HttpClient/Plugin/ApiVersion.php
index 3e196ea78..46b20e402 100644
--- a/lib/Gitlab/HttpClient/Plugin/ApiVersion.php
+++ b/lib/Gitlab/HttpClient/Plugin/ApiVersion.php
@@ -7,7 +7,7 @@
 use Psr\Http\Message\RequestInterface;
 
 /**
- * Prefix requests path with /api/v3/ if required.
+ * Prefix requests path with /api/v4/ if required.
  *
  * @author Fabien Bourigault <bourigaultfabien@gmail.com>
  */
@@ -20,8 +20,8 @@ public function handleRequest(RequestInterface $request, callable $next, callabl
     {
         $uri = $request->getUri();
 
-        if (substr($uri->getPath(), 0, 8) !== '/api/v3/') {
-            $request = $request->withUri($uri->withPath('/api/v3/'.$uri->getPath()));
+        if (substr($uri->getPath(), 0, 8) !== '/api/v4/') {
+            $request = $request->withUri($uri->withPath('/api/v4/'.$uri->getPath()));
         }
 
         return $next($request);
diff --git a/test/Gitlab/Tests/HttpClient/Plugin/ApiVersionTest.php b/test/Gitlab/Tests/HttpClient/Plugin/ApiVersionTest.php
index 805151d2c..0ef35ff5d 100644
--- a/test/Gitlab/Tests/HttpClient/Plugin/ApiVersionTest.php
+++ b/test/Gitlab/Tests/HttpClient/Plugin/ApiVersionTest.php
@@ -33,7 +33,7 @@ public function testCallNextCallback()
     public function testPrefixRequestPath()
     {
         $request = new Request('GET', 'projects');
-        $expected = new Request('GET', '/api/v3/projects');
+        $expected = new Request('GET', '/api/v4/projects');
         $plugin = new ApiVersion();
 
         $callback = $this->getMockBuilder(\stdClass::class)
@@ -50,7 +50,7 @@ public function testPrefixRequestPath()
 
     public function testNoPrefixingRequired()
     {
-        $request = new Request('GET', '/api/v3/projects');
+        $request = new Request('GET', '/api/v4/projects');
         $plugin = new ApiVersion();
 
         $callback = $this->getMockBuilder(\stdClass::class)