diff --git a/tests/BaseTest.php b/tests/BaseTest.php
index 136a553..9a98f50 100644
--- a/tests/BaseTest.php
+++ b/tests/BaseTest.php
@@ -45,4 +45,29 @@ abstract class BaseTest extends TestCase
     {
         Config::destroyInstance();
     }
+
+    /**
+     * Check tests requirements.
+     * @return void
+     */
+    protected function checkRequirements()
+    {
+        parent::checkRequirements();
+
+        $annotations = $this->getAnnotations();
+        $requires = [];
+
+        if (isset($annotations['class']['requires'])) {
+            $requires += $annotations['class']['requires'];
+        }
+        if (isset($annotations['method']['requires'])) {
+            $requires += $annotations['method']['requires'];
+        }
+
+        foreach ($requires as $require) {
+            if ($require == 'download' && getenv('CI')) {
+                $this->markTestSkipped('Do not run tests that download videos on CI.');
+            }
+        }
+    }
 }
diff --git a/tests/ConvertedPlaylistArchiveStreamTest.php b/tests/ConvertedPlaylistArchiveStreamTest.php
index 0c7b3c5..58b826e 100644
--- a/tests/ConvertedPlaylistArchiveStreamTest.php
+++ b/tests/ConvertedPlaylistArchiveStreamTest.php
@@ -11,6 +11,7 @@ use Alltube\Video;
 
 /**
  * Unit tests for the ConvertedPlaylistArchiveStream class.
+ * @requires download
  */
 class ConvertedPlaylistArchiveStreamTest extends StreamTest
 {
diff --git a/tests/DownloadControllerTest.php b/tests/DownloadControllerTest.php
index ada74f7..7bc4d93 100644
--- a/tests/DownloadControllerTest.php
+++ b/tests/DownloadControllerTest.php
@@ -11,6 +11,7 @@ use Alltube\Controller\DownloadController;
 
 /**
  * Unit tests for the FrontController class.
+ * @requires download
  */
 class DownloadControllerTest extends ControllerTest
 {
@@ -79,10 +80,6 @@ class DownloadControllerTest extends ControllerTest
      */
     public function testDownloadWithM3uStream()
     {
-        if (getenv('CI')) {
-            $this->markTestSkipped('Twitter returns a 429 error when the test is ran too many times.');
-        }
-
         Config::setOptions(['stream' => true]);
 
         $this->assertRequestIsOk(
@@ -153,9 +150,6 @@ class DownloadControllerTest extends ControllerTest
      */
     public function testDownloadWithMissingPassword()
     {
-        if (getenv('CI')) {
-            $this->markTestSkipped('Travis is blacklisted by Vimeo.');
-        }
         $this->assertRequestIsRedirect('download', ['url' => 'http://vimeo.com/68375962']);
     }
 
diff --git a/tests/FrontControllerTest.php b/tests/FrontControllerTest.php
index 0d9248b..2904d47 100644
--- a/tests/FrontControllerTest.php
+++ b/tests/FrontControllerTest.php
@@ -108,6 +108,7 @@ class FrontControllerTest extends ControllerTest
      * Test the info() function.
      *
      * @return void
+     * @requires download
      */
     public function testInfo()
     {
@@ -118,6 +119,7 @@ class FrontControllerTest extends ControllerTest
      * Test the info() function with audio conversion.
      *
      * @return void
+     * @requires download
      */
     public function testInfoWithAudio()
     {
@@ -133,12 +135,10 @@ class FrontControllerTest extends ControllerTest
      * Test the info() function with audio conversion from a Vimeo video.
      *
      * @return void
+     * @requires download
      */
     public function testInfoWithVimeoAudio()
     {
-        if (getenv('CI')) {
-            $this->markTestSkipped('Travis is blacklisted by Vimeo.');
-        }
         Config::setOptions(['convert' => true]);
 
         // So we can test the fallback to default format
@@ -149,6 +149,7 @@ class FrontControllerTest extends ControllerTest
      * Test the info() function with audio enabled and an URL that doesn't need to be converted.
      *
      * @return void
+     * @requires download
      */
     public function testInfoWithUnconvertedAudio()
     {
@@ -167,12 +168,10 @@ class FrontControllerTest extends ControllerTest
      * Test the info() function with a password.
      *
      * @return void
+     * @requires download
      */
     public function testInfoWithPassword()
     {
-        if (getenv('CI')) {
-            $this->markTestSkipped('Travis is blacklisted by Vimeo.');
-        }
         $result = $this->controller->info(
             $this->request->withQueryParams(['url' => 'http://vimeo.com/68375962'])
                 ->withParsedBody(['password' => 'youtube-dl']),
@@ -185,12 +184,10 @@ class FrontControllerTest extends ControllerTest
      * Test the info() function with a missing password.
      *
      * @return void
+     * @requires download
      */
     public function testInfoWithMissingPassword()
     {
-        if (getenv('CI')) {
-            $this->markTestSkipped('Travis is blacklisted by Vimeo.');
-        }
         $this->assertRequestIsOk('info', ['url' => 'http://vimeo.com/68375962']);
         $this->assertRequestIsOk('info', ['url' => 'http://vimeo.com/68375962', 'audio' => true]);
     }
@@ -199,6 +196,7 @@ class FrontControllerTest extends ControllerTest
      * Test the info() function with streams enabled.
      *
      * @return void
+     * @requires download
      */
     public function testInfoWithStream()
     {
@@ -215,6 +213,7 @@ class FrontControllerTest extends ControllerTest
      * Test the info() function with a playlist.
      *
      * @return void
+     * @requires download
      */
     public function testInfoWithPlaylist()
     {
diff --git a/tests/JsonControllerTest.php b/tests/JsonControllerTest.php
index 3b5de08..d25f3e6 100644
--- a/tests/JsonControllerTest.php
+++ b/tests/JsonControllerTest.php
@@ -27,6 +27,7 @@ class JsonControllerTest extends ControllerTest
      * Test the json() function.
      *
      * @return void
+     * @requires download
      */
     public function testJson()
     {
@@ -37,6 +38,7 @@ class JsonControllerTest extends ControllerTest
      * Test the json() function with an error.
      *
      * @return void
+     * @requires download
      */
     public function testJsonWithError()
     {
diff --git a/tests/PlaylistArchiveStreamTest.php b/tests/PlaylistArchiveStreamTest.php
index afefcb2..9c301a3 100644
--- a/tests/PlaylistArchiveStreamTest.php
+++ b/tests/PlaylistArchiveStreamTest.php
@@ -11,6 +11,7 @@ use Alltube\Video;
 
 /**
  * Unit tests for the PlaylistArchiveStream class.
+ * @requires download
  */
 class PlaylistArchiveStreamTest extends StreamTest
 {
diff --git a/tests/VideoTest.php b/tests/VideoTest.php
index 913538b..b19b538 100644
--- a/tests/VideoTest.php
+++ b/tests/VideoTest.php
@@ -11,6 +11,7 @@ use Alltube\Video;
 
 /**
  * Unit tests for the Video class.
+ * @requires download
  */
 class VideoTest extends BaseTest
 {
@@ -58,10 +59,6 @@ class VideoTest extends BaseTest
      */
     public function testgetUrlWithPassword()
     {
-        if (getenv('CI')) {
-            $this->markTestSkipped('Travis is blacklisted by Vimeo.');
-        }
-
         $video = new Video('http://vimeo.com/68375962', 'best', 'youtube-dl');
         foreach ($video->getUrl() as $videoURL) {
             $this->assertContains('vimeocdn.com', $videoURL);
@@ -76,10 +73,6 @@ class VideoTest extends BaseTest
      */
     public function testgetUrlWithMissingPassword()
     {
-        if (getenv('CI')) {
-            $this->markTestSkipped('Travis is blacklisted by Vimeo.');
-        }
-
         $video = new Video('http://vimeo.com/68375962');
         $video->getUrl();
     }
@@ -92,10 +85,6 @@ class VideoTest extends BaseTest
      */
     public function testgetUrlWithWrongPassword()
     {
-        if (getenv('CI')) {
-            $this->markTestSkipped('Travis is blacklisted by Vimeo.');
-        }
-
         $video = new Video('http://vimeo.com/68375962', 'best', 'foo');
         $video->getUrl();
     }
@@ -148,17 +137,13 @@ class VideoTest extends BaseTest
                 'mp4',
                 'openload.co',
             ],
-        ];
-
-        if (!getenv('CI')) {
-            // Travis is blacklisted by Vimeo.
-            $videos[] = [
+            [
                 'https://vimeo.com/24195442', 'best[protocol^=http]',
                 'Carving_the_Mountains-24195442',
                 'mp4',
                 'vimeocdn.com',
-            ];
-        }
+            ]
+        ];
 
         return $videos;
     }
@@ -187,17 +172,14 @@ class VideoTest extends BaseTest
      */
     public function m3uUrlProvider()
     {
-        $videos = [];
-
-        if (!getenv('CI')) {
-            // Twitter returns a 429 error when the test is ran too many times.
-            $videos[] = [
+        $videos = [
+            [
                 'https://twitter.com/verge/status/813055465324056576/video/1', 'hls-2176',
                 'The_Verge_-_This_tiny_origami_robot_can_self-fold_and_complete_tasks-813055465324056576',
                 'mp4',
                 'video.twimg.com',
-            ];
-        }
+            ]
+        ];
 
         return $videos;
     }
@@ -359,10 +341,6 @@ class VideoTest extends BaseTest
      */
     public function testGetAudioStreamDashError()
     {
-        if (getenv('CI')) {
-            $this->markTestSkipped('Travis is blacklisted by Vimeo.');
-        }
-
         $video = new Video('https://vimeo.com/251997032', 'bestaudio/best');
         $video->getAudioStream();
     }
diff --git a/tests/YoutubeChunkStreamTest.php b/tests/YoutubeChunkStreamTest.php
index cae27c0..a817119 100644
--- a/tests/YoutubeChunkStreamTest.php
+++ b/tests/YoutubeChunkStreamTest.php
@@ -11,6 +11,7 @@ use Alltube\Video;
 
 /**
  * Unit tests for the YoutubeChunkStream class.
+ * @requires download
  */
 class YoutubeChunkStreamTest extends StreamTest
 {
diff --git a/tests/YoutubeStreamTest.php b/tests/YoutubeStreamTest.php
index f855aa8..3bbd325 100644
--- a/tests/YoutubeStreamTest.php
+++ b/tests/YoutubeStreamTest.php
@@ -11,6 +11,7 @@ use Alltube\Video;
 
 /**
  * Unit tests for the YoutubeStream class.
+ * @requires download
  */
 class YoutubeStreamTest extends StreamTest
 {