diff --git a/app/code/community/Studioforty9/Recaptcha/Helper/Request.php b/app/code/community/Studioforty9/Recaptcha/Helper/Request.php
index 04276dd..cd30b73 100644
--- a/app/code/community/Studioforty9/Recaptcha/Helper/Request.php
+++ b/app/code/community/Studioforty9/Recaptcha/Helper/Request.php
@@ -73,6 +73,11 @@ public function verify()
         );
         
         $client = $this->getHttpClient();
+        if (defined('HHVM_VERSION')) {
+            $client->setConfig(array(
+                'httpversion' => Zend_Http_Client::HTTP_0
+            ));
+        }
         $client->setParameterPost($params);
         $errors = array();