diff --git a/.travis.yml b/.travis.yml
index 2582b2c..9fddda0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,11 @@ notifications:
 
 sudo: false
 
+addons:
+  apt:
+    packages:
+      - stunnel4
+
 language: php
 
 php:
diff --git a/src/Net/Http/HttpConnector.php b/src/Net/Http/HttpConnector.php
index b7462a6..b6adc06 100644
--- a/src/Net/Http/HttpConnector.php
+++ b/src/Net/Http/HttpConnector.php
@@ -59,6 +59,10 @@ public function fetchFreshData($source, EncapsulatedOptions $options = null)
                     $this->options->extractHttpContextOptions(),
                     $options ? $options->extractHttpContextOptions() : []
                 ),
+                'ssl' => [
+                    'verify_peer' => false,
+                    'verify_peer_name' => false,
+                ],
             ])
         )) {
             $error = error_get_last();
diff --git a/test/Functional/Porter/Net/Http/HttpConnectorTest.php b/test/Functional/Porter/Net/Http/HttpConnectorTest.php
index 277c7dd..2bfc57a 100644
--- a/test/Functional/Porter/Net/Http/HttpConnectorTest.php
+++ b/test/Functional/Porter/Net/Http/HttpConnectorTest.php
@@ -12,6 +12,7 @@
 final class HttpConnectorTest extends \PHPUnit_Framework_TestCase
 {
     const HOST = '[::1]:12345';
+    const SSL_HOST = '[::1]:6666';
     const URI = '/test?baz=qux';
 
     private static $dir;
@@ -33,12 +34,26 @@ public function testConnectionToLocalWebserver()
     {
         $server = $this->startServer('feedback');
         $response = $this->fetch(new HttpConnector((new HttpOptions)->addHeader($header = 'Foo: Bar')));
-        $this->stopServer($server);
+        $server->stop();
 
         self::assertRegExp('[\AGET \Q' . self::HOST . self::URI . '\E HTTP/\d+\.\d+$]m', $response);
         self::assertRegExp("[^$header$]m", $response);
     }
 
+    /**
+     * @requires OS Linux
+     */
+    public function testSslConnectionToLocalWebserver()
+    {
+        $this->startSsl();
+        $server = $this->startServer('feedback');
+        $response = $this->fetchViaSsl();
+        $server->stop();
+        $this->stopSsl();
+
+        self::assertRegExp('[\AGET \Q' . self::SSL_HOST . '\E/ HTTP/\d+\.\d+$]m', $response);
+    }
+
     public function testConnectionTimeout()
     {
         $this->setExpectedException(HttpConnectionException::class);
@@ -59,7 +74,7 @@ public function testErrorResponse()
 
             throw $exception;
         } finally {
-            $this->stopServer($server);
+            $server->stop();
         }
     }
 
@@ -70,15 +85,16 @@ public function testErrorResponse()
      */
     private function startServer($script)
     {
-        $server = (
-            new Process(sprintf(
+        $server = new Process(
+            sprintf(
                 '%sphp -S %s %s.php',
                 // Prevent forking on some Unix systems.
                 file_exists('/bin/sh') ? 'exec ' : '',
                 self::HOST,
                 $script
-            ))
-        )->setWorkingDirectory(self::$dir);
+            ),
+            self::$dir
+        );
         $server->start();
 
         // Wait for server to spawn.
@@ -86,7 +102,7 @@ private function startServer($script)
             $this->fetch();
         }, function (\Exception $exception) {
             static $handler;
-            $handler = $handler ?: new ExponentialBackoffExceptionHandler();
+            $handler = $handler ?: new ExponentialBackoffExceptionHandler;
 
             if (!$exception instanceof HttpConnectionException) {
                 return false;
@@ -98,9 +114,35 @@ private function startServer($script)
         return $server;
     }
 
-    private function stopServer(Process $server)
+    private function startSsl()
     {
-        $server->stop();
+        $accept = strtr(self::SSL_HOST, $filter = ['[' => '', ']' => '']);
+        $connect = strtr(self::HOST, $filter);
+        $temp = tempnam(sys_get_temp_dir(), 'Porter');
+
+        // Generate SSL certificate.
+        `yes '' | openssl req -new -x509 -nodes -keyout '$temp' -out '$temp'`;
+
+        $ssl = new Process(
+            "{ stunnel4 -fd 0 || stunnel -fd 0; } <<.
+                # Disable PID to run as non-root user.
+                pid=
+                # Must run as foreground process on Travis, for some reason.
+                foreground=yes
+    
+                []
+                cert=$temp
+                accept=$accept
+                connect=$connect
+.");
+        $ssl->start();
+
+        return $ssl;
+    }
+
+    private function stopSsl()
+    {
+        `pkill stunnel`;
     }
 
     private function fetch(Connector $connector = null)
@@ -109,4 +151,9 @@ private function fetch(Connector $connector = null)
 
         return $connector->fetch('http://' . self::HOST . self::URI);
     }
+
+    private function fetchViaSsl()
+    {
+        return $this->connector->fetch('https://' . self::SSL_HOST);
+    }
 }