diff --git a/configure.ac b/configure.ac
index 30623420..8d8d739c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -10,7 +10,7 @@ AC_PREREQ(2.57)
 dnl Sneaky way to get an Id tag into the configure script
 AC_COPYRIGHT([$Id: configure.ac 3516 2007-06-10 16:14:03Z jilles $])
 
-AC_INIT([charybdis], [3.5.0])
+AC_INIT([charybdis], [3.6.0-dev])
 
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_HEADER(include/setup.h)