diff --git a/src/Google/Client.php b/src/Google/Client.php
index e88dda98a..0f29a10ab 100644
--- a/src/Google/Client.php
+++ b/src/Google/Client.php
@@ -38,7 +38,7 @@
  */
 class Google_Client
 {
-  const LIBVER = "2.2.1";
+  const LIBVER = "2.2.2";
   const USER_AGENT_SUFFIX = "google-api-php-client/";
   const OAUTH2_REVOKE_URI = 'https://accounts.google.com/o/oauth2/revoke';
   const OAUTH2_TOKEN_URI = 'https://www.googleapis.com/oauth2/v4/token';