diff --git a/honoka/configure.ac b/honoka/configure.ac
index 6ae8ade..96ad4da 100644
--- a/honoka/configure.ac
+++ b/honoka/configure.ac
@@ -1,5 +1,5 @@
 # Process this file with autoconf to produce a configure script.
-AC_INIT(honoka, 0.3.0, tam-t@par.odn.ne.jp)
+AC_INIT(honoka, 0.3.1, tam-t@par.odn.ne.jp)
 AC_CONFIG_SRCDIR([src/honoka_imengine.h])
 
 # Save this value here, since automake will set cflags and cxxflags later
@@ -8,7 +8,7 @@
 
 HONOKA_MAJOR_VERSION=0
 HONOKA_MINOR_VERSION=3
-HONOKA_MICRO_VERSION=0
+HONOKA_MICRO_VERSION=1
 
 HONOKA_VERSION=$HONOKA_MAJOR_VERSION.$HONOKA_MINOR_VERSION.$HONOKA_MICRO_VERSION
 
diff --git a/honoka/m4/Makefile b/honoka/m4/Makefile
index 8594909..d96c084 100644
--- a/honoka/m4/Makefile
+++ b/honoka/m4/Makefile
@@ -113,9 +113,9 @@
 HAVE_SNPRINTF = 1
 HAVE_WPRINTF = 0
 HONOKA_MAJOR_VERSION = 0
-HONOKA_MICRO_VERSION = 0
+HONOKA_MICRO_VERSION = 1
 HONOKA_MINOR_VERSION = 3
-HONOKA_VERSION = 0.3.0
+HONOKA_VERSION = 0.3.1
 INSTALL_DATA = ${INSTALL} -m 644
 INSTALL_LTDL_FALSE = 
 INSTALL_LTDL_TRUE = #
@@ -147,9 +147,9 @@
 PACKAGE = honoka
 PACKAGE_BUGREPORT = tam-t@par.odn.ne.jp
 PACKAGE_NAME = honoka
-PACKAGE_STRING = honoka 0.3.0
+PACKAGE_STRING = honoka 0.3.1
 PACKAGE_TARNAME = honoka
-PACKAGE_VERSION = 0.3.0
+PACKAGE_VERSION = 0.3.1
 PATH_SEPARATOR = :
 PKG_CONFIG = /usr/bin/pkg-config
 POSUB = po
@@ -171,7 +171,7 @@
 STRIP = strip
 USE_INCLUDED_LIBINTL = no
 USE_NLS = yes
-VERSION = 0.3.0
+VERSION = 0.3.1
 WNNCONVERSION = 
 WNNCONVERSION_FALSE = #
 WNNCONVERSION_TRUE =