diff --git a/configure.ac b/configure.ac
index 4459a99..e22407d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -5,7 +5,7 @@ AC_PREREQ(2.61)
 # even micro numbers indicate released versions
 m4_define(sdbus_cpp_version_major, 0)
 m4_define(sdbus_cpp_version_minor, 2)
-m4_define(sdbus_cpp_version_micro, 3)
+m4_define(sdbus_cpp_version_micro, 4)
 
 m4_define([sdbus_cpp_version],
           [sdbus_cpp_version_major.sdbus_cpp_version_minor.sdbus_cpp_version_micro])