diff --git a/.travis.yml b/.travis.yml
index 157e9dd..0922767 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: php
 
-sudo: false
+sudo: required
 
 cache:
     directories:
diff --git a/tests/BaseTestCase.php b/tests/BaseTestCase.php
index 50b4fe3..3bc67d2 100644
--- a/tests/BaseTestCase.php
+++ b/tests/BaseTestCase.php
@@ -12,6 +12,11 @@ public function startServer($name)
     {
         $filename = __DIR__ . '/server/' . $name . '.php';
         $pipes    = [];
+
+        if (!Semaphore::acquire()) {
+            $this->fail('Could not connect to server');
+        }
+
         $this->servers[$name] = proc_open('php '. $filename, [], $pipes);
         sleep(1);
     }
@@ -28,5 +33,7 @@ public function tearDown()
         foreach (array_keys($this->servers) as $name) {
             $this->stopServer($name);
         }
+
+        Semaphore::release();
     }
 }
diff --git a/tests/Semaphore.php b/tests/Semaphore.php
new file mode 100644
index 0000000..ea83010
--- /dev/null
+++ b/tests/Semaphore.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace Http\Client\Socket\Tests;
+
+/**
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+final class Semaphore
+{
+    private static $openConnections = 0;
+
+    /**
+     * Busy waiting for my turn to go.
+     *
+     * @return bool
+     */
+    public static function acquire()
+    {
+        $tries = 1;
+        while (self::$openConnections > 0) {
+            sleep($tries++);
+            if ($tries > 5) {
+                return false;
+            }
+        }
+        self::$openConnections++;
+
+        return true;
+    }
+
+    /**
+     * Signal that you are done.
+     */
+    public static function release()
+    {
+        // Do no be too quick
+        usleep(500000);
+        self::$openConnections--;
+    }
+}
diff --git a/tests/StreamTest.php b/tests/StreamTest.php
index 910c6e2..2421fb1 100644
--- a/tests/StreamTest.php
+++ b/tests/StreamTest.php
@@ -2,6 +2,7 @@
 
 namespace Http\Client\Socket\Tests;
 
+use Http\Client\Socket\Exception\TimeoutException;
 use Http\Client\Socket\Stream;
 use PHPUnit\Framework\TestCase;
 
@@ -108,18 +109,16 @@ public function testIsReadable()
         $this->assertTrue($stream->isReadable());
     }
 
+    /**
+     * @expectedException \Http\Client\Socket\Exception\TimeoutException
+     */
     public function testTimeout()
     {
         $socket = fsockopen("php.net", 80);
         socket_set_timeout($socket, 0, 100);
 
-        $stream = new Stream($socket);
-
-        try {
-            $stream->getContents();
-        } catch (\Exception $e) {
-            $this->assertInstanceOf('Http\Socket\Exception\TimeoutException', $e);
-        }
+        $stream = new Stream($socket, 50);
+        $stream->getContents();
     }
 
     public function testMetadatas()
diff --git a/tests/server/ssl/file.srl b/tests/server/ssl/file.srl
index fe909bb..da51c42 100644
--- a/tests/server/ssl/file.srl
+++ b/tests/server/ssl/file.srl
@@ -1 +1 @@
-2D
+2F
diff --git a/tests/server/tcp-bugous-server.php b/tests/server/tcp-bugous-server.php
index 72b0946..7f0d91f 100644
--- a/tests/server/tcp-bugous-server.php
+++ b/tests/server/tcp-bugous-server.php
@@ -1,6 +1,9 @@
 <?php
 
+require_once __DIR__."/../Semaphore.php";
+
 $socketServer = stream_socket_server('127.0.0.1:19999');
 $client       = stream_socket_accept($socketServer);
 
 fclose($client);
+\Http\Client\Socket\Tests\Semaphore::release();
diff --git a/tests/server/tcp-server.php b/tests/server/tcp-server.php
index b11959f..7c27803 100644
--- a/tests/server/tcp-server.php
+++ b/tests/server/tcp-server.php
@@ -1,7 +1,9 @@
 <?php
 
+require_once __DIR__."/../Semaphore.php";
+
 $socketServer = stream_socket_server('127.0.0.1:19999');
-$client       = stream_socket_accept($socketServer);
+$client = stream_socket_accept($socketServer);
 
 fwrite($client, str_replace("\n", "\r\n", <<<EOR
 HTTP/1.1 200 OK
@@ -14,3 +16,4 @@
 while (!@feof($client)) {
     @fread($client, 1000);
 }
+\Http\Client\Socket\Tests\Semaphore::release();
diff --git a/tests/server/tcp-ssl-server-client.php b/tests/server/tcp-ssl-server-client.php
index 07732c8..796c64b 100644
--- a/tests/server/tcp-ssl-server-client.php
+++ b/tests/server/tcp-ssl-server-client.php
@@ -1,5 +1,7 @@
 <?php
 
+require_once __DIR__."/../Semaphore.php";
+
 $context      = stream_context_create([
     'ssl' => [
         'local_cert'  => __DIR__ . '/ssl/server-and-key.pem',
@@ -44,3 +46,4 @@
 while (!@feof($client)) {
     @fread($client, 1000);
 }
+\Http\Client\Socket\Tests\Semaphore::release();
diff --git a/tests/server/tcp-ssl-server.php b/tests/server/tcp-ssl-server.php
index de3af5a..2d5a22e 100644
--- a/tests/server/tcp-ssl-server.php
+++ b/tests/server/tcp-ssl-server.php
@@ -1,5 +1,7 @@
 <?php
 
+require_once __DIR__."/../Semaphore.php";
+
 $context      = stream_context_create([
     'ssl' => [
         'local_cert'  => __DIR__ . '/ssl/server-and-key.pem'
@@ -30,8 +32,8 @@
 }
 
 
-
-
 while (!@feof($client)) {
     @fread($client, 1000);
 }
+
+\Http\Client\Socket\Tests\Semaphore::release();
diff --git a/tests/server/unix-domain-server.php b/tests/server/unix-domain-server.php
index d6954b0..6221b98 100644
--- a/tests/server/unix-domain-server.php
+++ b/tests/server/unix-domain-server.php
@@ -1,5 +1,7 @@
 <?php
 
+require_once __DIR__."/../Semaphore.php";
+
 if (file_exists(__DIR__.'/server.sock')) {
     unlink(__DIR__.'/server.sock');
 }
@@ -20,3 +22,4 @@
 }
 
 unlink(__DIR__.'/server.sock');
+\Http\Client\Socket\Tests\Semaphore::release();