diff --git a/configure.ac b/configure.ac
index b273ccf2..539a9a87 100644
--- a/configure.ac
+++ b/configure.ac
@@ -9,8 +9,8 @@ AC_PREREQ([2.63])
 # Development versions: x.y.90
 # Pre-release versions: x.y.z, where z = 90 + X in rcX (1.1rc1 = 1.1.91)
 m4_define([icecream_version_major],[1])
-m4_define([icecream_version_minor],[3])
-m4_define([icecream_version_micro],[91])
+m4_define([icecream_version_minor],[4])
+m4_define([icecream_version_micro],[0])
 m4_ifnblank(icecream_version_micro,
         [m4_define([icecream_version],[icecream_version_major.icecream_version_minor.icecream_version_micro])],
         [m4_define([icecream_version],[icecream_version_major.icecream_version_minor])])