diff --git a/src/Client.php b/src/Client.php
index 415ea97..81b5e6a 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -3,7 +3,7 @@
 
 use DateTime;
 
-const VERSION = "1.1.0";
+const VERSION = "1.1.0-dev";
 const INITIAL_BACKOFF_SECONDS = 1;
 const MAX_BACKOFF_SECONDS = 32;
 const BACKOFF_FACTOR = 2;