diff --git a/CHANGELOG.md b/CHANGELOG.md
index b63d5419..4e903b8e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [11.7.1] - 2022-04-24
+
+* Fixed `GroupsEpic::all()` method
+* Fixed `Projects::createPipeline()` method
+
 ## [11.7.0] - 2022-01-24
 
 * Dropped PHP 7.2 and 7.3 support
diff --git a/src/Api/AbstractApi.php b/src/Api/AbstractApi.php
index 70f899ad..5c81d6fd 100644
--- a/src/Api/AbstractApi.php
+++ b/src/Api/AbstractApi.php
@@ -103,10 +103,11 @@ protected function get(string $uri, array $params = [], array $headers = [])
      * @param array<string,mixed>  $params
      * @param array<string,string> $headers
      * @param array<string,string> $files
+     * @param array<string,mixed>  $uriParams
      *
      * @return mixed
      */
-    protected function post(string $uri, array $params = [], array $headers = [], array $files = [])
+    protected function post(string $uri, array $params = [], array $headers = [], array $files = [], array $uriParams = [])
     {
         if (0 < \count($files)) {
             $builder = $this->createMultipartStreamBuilder($params, $files);
@@ -120,7 +121,7 @@ protected function post(string $uri, array $params = [], array $headers = [], ar
             }
         }
 
-        $response = $this->client->getHttpClient()->post(self::prepareUri($uri), $headers, $body);
+        $response = $this->client->getHttpClient()->post(self::prepareUri($uri, $uriParams), $headers, $body);
 
         return ResponseMediator::getContent($response);
     }
diff --git a/src/Api/GroupsEpics.php b/src/Api/GroupsEpics.php
index e66e9730..b6ab2cdc 100644
--- a/src/Api/GroupsEpics.php
+++ b/src/Api/GroupsEpics.php
@@ -19,7 +19,12 @@ class GroupsEpics extends AbstractApi
     /**
      * @var string
      */
-    public const STATE_ACTIVE = 'active';
+    public const STATE_ALL = 'all';
+
+    /**
+     * @var string
+     */
+    public const STATE_OPENED = 'opened';
 
     /**
      * @var string
@@ -47,7 +52,7 @@ public function all($group_id, array $parameters = [])
             })
         ;
         $resolver->setDefined('state')
-            ->setAllowedValues('state', [self::STATE_ACTIVE, self::STATE_CLOSED])
+            ->setAllowedValues('state', [self::STATE_ALL, self::STATE_OPENED, self::STATE_CLOSED])
         ;
         $resolver->setDefined('search');
 
diff --git a/src/Api/Projects.php b/src/Api/Projects.php
index fe067dd6..e824cc2f 100644
--- a/src/Api/Projects.php
+++ b/src/Api/Projects.php
@@ -421,15 +421,15 @@ public function pipelineVariables($project_id, int $pipeline_id)
      */
     public function createPipeline($project_id, string $commit_ref, array $variables = null)
     {
-        $parameters = [
-            'ref' => $commit_ref,
-        ];
+        $parameters = [];
 
         if (null !== $variables) {
             $parameters['variables'] = $variables;
         }
 
-        return $this->post($this->getProjectPath($project_id, 'pipeline'), $parameters);
+        return $this->post($this->getProjectPath($project_id, 'pipeline'), $parameters, [], [], [
+            'ref' => $commit_ref,
+        ]);
     }
 
     /**
diff --git a/tests/Api/ProjectsTest.php b/tests/Api/ProjectsTest.php
index 200de417..113c69c9 100644
--- a/tests/Api/ProjectsTest.php
+++ b/tests/Api/ProjectsTest.php
@@ -839,7 +839,7 @@ public function shouldCreatePipeline(): void
         $api = $this->getApiMock();
         $api->expects($this->once())
             ->method('post')
-            ->with('projects/1/pipeline', ['ref' => 'test-pipeline'])
+            ->with('projects/1/pipeline', [], [], [], ['ref' => 'test-pipeline'])
             ->will($this->returnValue($expectedArray));
 
         $this->assertEquals($expectedArray, $api->createPipeline(1, 'test-pipeline'));
@@ -868,7 +868,7 @@ public function shouldCreatePipelineWithVariables(): void
         $api = $this->getApiMock();
         $api->expects($this->once())
             ->method('post')
-            ->with('projects/1/pipeline', ['ref' => 'test-pipeline', 'variables' => $variables])
+            ->with('projects/1/pipeline', ['variables' => $variables], [], [], ['ref' => 'test-pipeline'])
             ->will($this->returnValue($expectedArray));
 
         $this->assertEquals($expectedArray, $api->createPipeline(1, 'test-pipeline', $variables));
diff --git a/tests/HttpClient/Message/ResponseMediatorTest.php b/tests/HttpClient/Message/ResponseMediatorTest.php
index 4596ee24..7266ecfa 100644
--- a/tests/HttpClient/Message/ResponseMediatorTest.php
+++ b/tests/HttpClient/Message/ResponseMediatorTest.php
@@ -75,12 +75,7 @@ public function testGetErrrorMessageInvalidJson(): void
 
     public function testGetPagination(): void
     {
-        $header = <<<'TEXT'
-<https://example.gitlab.com>; rel="first",
-<https://example.gitlab.com>; rel="next",
-<https://example.gitlab.com>; rel="prev",
-<https://example.gitlab.com>; rel="last",
-TEXT;
+        $header = '<https://example.gitlab.com>; rel="first",<https://example.gitlab.com>; rel="next",<https://example.gitlab.com>; rel="prev",<https://example.gitlab.com>; rel="last"';
 
         $pagination = [
             'first' => 'https://example.gitlab.com/',
diff --git a/tests/IntegrationTest.php b/tests/IntegrationTest.php
index 910aeaa3..e095c4ea 100644
--- a/tests/IntegrationTest.php
+++ b/tests/IntegrationTest.php
@@ -26,7 +26,7 @@ public function testRepoContributors(): void
 
         $response = $client
             ->repositories()
-            ->contributors(5315609);
+            ->contributors(16155465);
 
         $this->assertIsArray($response);
         $this->assertTrue(isset($response[2]));