diff --git a/configure.ac b/configure.ac
index a8a0567..b641153 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_PREREQ([2.68])
-AC_INIT([tio], [1.22], [], [tio], [https://tio.github.io])
+AC_INIT([tio], [1.23], [], [tio], [https://tio.github.io])
 AC_CONFIG_HEADERS([src/include/config.h])
 AM_INIT_AUTOMAKE([1.11 foreign dist-xz no-dist-gzip -Wall -Werror])
 AM_SILENT_RULES([yes])