diff --git a/configure.ac b/configure.ac
index b12e368fa9..8e27c3efbe 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 dnl Evolution Versions
 m4_define([evo_major_version], [3])
 m4_define([evo_minor_version], [13])
-m4_define([evo_micro_version], [90])
+m4_define([evo_micro_version], [91])
 m4_define([evo_version],
 	[evo_major_version.evo_minor_version.evo_micro_version])
 m4_define([evo_stable_version],