diff --git a/configure.ac b/configure.ac
index 19efd08e640f92c25c4ae02e8ac44b5c2e1ee37b..0d06592b534edeba5c4bc9b791feb7af4be37c60 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ(2.68)
-AC_INIT([GNU Guix], [0.9.0], [bug-guix@gnu.org], [guix],
+AC_INIT([GNU Guix], [0.9.1], [bug-guix@gnu.org], [guix],
   [http://www.gnu.org/software/guix/])
 AC_CONFIG_AUX_DIR([build-aux])