diff --git a/src/ar.hrl b/src/ar.hrl
index 213d5c24d..a459067e6 100644
--- a/src/ar.hrl
+++ b/src/ar.hrl
@@ -7,7 +7,7 @@
 -define(CLIENT_VERSION, 3).
 
 %% @doc The current build number -- incremented for every release.
--define(RELEASE_NUMBER, 14).
+-define(RELEASE_NUMBER, 15).
 
 -define(DEFAULT_REQUEST_HEADERS,
 	[