diff --git a/configure.ac b/configure.ac
index cbb09fcbf4..f6969c5706 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@ dnl require autoconf 2.60 (AS_ECHO/AS_ECHO_N)
 AC_PREREQ([2.60])
 define(_CLIENT_VERSION_MAJOR, 4)
 define(_CLIENT_VERSION_MINOR, 2)
-define(_CLIENT_VERSION_REVISION, 0)
+define(_CLIENT_VERSION_REVISION, 1)
 define(_CLIENT_VERSION_BUILD, 0)
 define(_CLIENT_VERSION_RC, 0)
 define(_CLIENT_VERSION_IS_RELEASE, true)