diff --git a/.travis.yml b/.travis.yml
index a03f560..81a8f42 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,3 +1,5 @@
+dist: trusty
+
 language: php
 
 php:
diff --git a/composer.json b/composer.json
index 88ca24a..a0a16ee 100644
--- a/composer.json
+++ b/composer.json
@@ -33,7 +33,7 @@
     "guzzlehttp/promises": "^1.3.0",
     "phpunit/phpunit": "^4.1|^5.1",
     "react/promise": "^2.5.0",
-    "webonyx/graphql-php": "^0.9.0"
+    "webonyx/graphql-php": "^0.9.14"
   },
   "suggest": {
     "guzzlehttp/promises": "To use with Guzzle promise",
diff --git a/lib/promise-adapter/src/PromiseAdapterInterface.php b/lib/promise-adapter/src/PromiseAdapterInterface.php
index 6517a9e..ea28744 100644
--- a/lib/promise-adapter/src/PromiseAdapterInterface.php
+++ b/lib/promise-adapter/src/PromiseAdapterInterface.php
@@ -22,60 +22,60 @@ interface PromiseAdapterInterface
      *
      * @return mixed a Promise
      */
-  public function create(&$resolve = null, &$reject = null, callable $canceller = null);
+    public function create(&$resolve = null, &$reject = null, callable $canceller = null);
 
-  /**
-   * Creates a full filed Promise for a value if the value is not a promise.
-   *
-   * @param mixed $promiseOrValue
-   *
-   * @return mixed a full filed Promise
-   */
-  public function createFulfilled($promiseOrValue = null);
+    /**
+     * Creates a full filed Promise for a value if the value is not a promise.
+     *
+     * @param mixed $promiseOrValue
+     *
+     * @return mixed a full filed Promise
+     */
+    public function createFulfilled($promiseOrValue = null);
 
-  /**
-   * Creates a rejected promise for a reason if the reason is not a promise. If
-   * the provided reason is a promise, then it is returned as-is.
-   *
-   * @param mixed $reason
-   *
-   * @return mixed a rejected promise
-   */
-  public function createRejected($reason);
+    /**
+     * Creates a rejected promise for a reason if the reason is not a promise. If
+     * the provided reason is a promise, then it is returned as-is.
+     *
+     * @param mixed $reason
+     *
+     * @return mixed a rejected promise
+     */
+    public function createRejected($reason);
 
-  /**
-   * Given an array of promises, return a promise that is fulfilled when all the
-   * items in the array are fulfilled.
-   *
-   * @param mixed $promisesOrValues Promises or values.
-   *
-   * @return mixed a Promise
-   */
-  public function createAll($promisesOrValues);
+    /**
+     * Given an array of promises, return a promise that is fulfilled when all the
+     * items in the array are fulfilled.
+     *
+     * @param mixed $promisesOrValues Promises or values.
+     *
+     * @return mixed a Promise
+     */
+    public function createAll($promisesOrValues);
 
-  /**
-   * Check if value is a promise
-   *
-   * @param mixed $value
-   * @param bool $strict
-   *
-   * @return bool
-   */
-  public function isPromise($value, $strict = false);
+    /**
+     * Check if value is a promise
+     *
+     * @param mixed $value
+     * @param bool $strict
+     *
+     * @return bool
+     */
+    public function isPromise($value, $strict = false);
 
-  /**
-   * Cancel a promise
-   *
-   * @param $promise
-   */
-  public function cancel($promise);
+    /**
+     * Cancel a promise
+     *
+     * @param $promise
+     */
+    public function cancel($promise);
 
-  /**
-   * wait for Promise to complete
-   * @param mixed $promise
-   * @param bool  $unwrap
-   *
-   * @return mixed
-   */
-  public function await($promise = null, $unwrap = false);
+    /**
+     * wait for Promise to complete
+     * @param mixed $promise
+     * @param bool  $unwrap
+     *
+     * @return mixed
+     */
+    public function await($promise = null, $unwrap = false);
 }
diff --git a/lib/promise-adapter/tests/AdapterTest.php b/lib/promise-adapter/tests/AdapterTest.php
index 738d39d..a51e9e1 100644
--- a/lib/promise-adapter/tests/AdapterTest.php
+++ b/lib/promise-adapter/tests/AdapterTest.php
@@ -9,7 +9,6 @@
  * file that was distributed with this source code.
  */
 
-
 namespace Overblog\PromiseAdapter\Tests;
 
 use Overblog\PromiseAdapter\Adapter\GuzzleHttpPromiseAdapter;
diff --git a/src/Promise/Adapter/Webonyx/GraphQL/SyncPromiseAdapter.php b/src/Promise/Adapter/Webonyx/GraphQL/SyncPromiseAdapter.php
index f817ce6..fc2f82a 100644
--- a/src/Promise/Adapter/Webonyx/GraphQL/SyncPromiseAdapter.php
+++ b/src/Promise/Adapter/Webonyx/GraphQL/SyncPromiseAdapter.php
@@ -11,27 +11,19 @@
 
 namespace Overblog\DataLoader\Promise\Adapter\Webonyx\GraphQL;
 
-use GraphQL\Deferred;
-use GraphQL\Executor\Promise\Adapter\SyncPromise;
 use GraphQL\Executor\Promise\Adapter\SyncPromiseAdapter as BaseSyncPromiseAdapter;
 use GraphQL\Executor\Promise\Promise;
 use Overblog\DataLoader\DataLoader;
 
 class SyncPromiseAdapter extends BaseSyncPromiseAdapter
 {
-    /**
-     * Synchronously wait when promise completes
-     *
-     * @param Promise $promise
-     * @return mixed
-     */
-    public function wait(Promise $promise)
+    protected function beforeWait(Promise $promise)
     {
         DataLoader::await();
-        Deferred::runQueue();
-        SyncPromise::runQueue();
-        DataLoader::await();
+    }
 
-        return parent::wait($promise);
+    protected function onWait(Promise $promise)
+    {
+        DataLoader::await();
     }
 }