diff --git a/configure b/configure
index f5b76e10..03bc5ed5 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.59 for aria2c 0.2.1-dev.
+# Generated by GNU Autoconf 2.59 for aria2c 0.2.1.
 #
 # Report bugs to <tujikawa@rednoah.com>.
 #
@@ -269,8 +269,8 @@ SHELL=${CONFIG_SHELL-/bin/sh}
 # Identity of this package.
 PACKAGE_NAME='aria2c'
 PACKAGE_TARNAME='aria2c'
-PACKAGE_VERSION='0.2.1-dev'
-PACKAGE_STRING='aria2c 0.2.1-dev'
+PACKAGE_VERSION='0.2.1'
+PACKAGE_STRING='aria2c 0.2.1'
 PACKAGE_BUGREPORT='tujikawa@rednoah.com'
 
 ac_unique_file="src/Socket.h"
@@ -788,7 +788,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures aria2c 0.2.1-dev to adapt to many kinds of systems.
+\`configure' configures aria2c 0.2.1 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -850,7 +850,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of aria2c 0.2.1-dev:";;
+     short | recursive ) echo "Configuration of aria2c 0.2.1:";;
    esac
   cat <<\_ACEOF
 
@@ -977,7 +977,7 @@ fi
 test -n "$ac_init_help" && exit 0
 if $ac_init_version; then
   cat <<\_ACEOF
-aria2c configure 0.2.1-dev
+aria2c configure 0.2.1
 generated by GNU Autoconf 2.59
 
 Copyright (C) 2003 Free Software Foundation, Inc.
@@ -991,7 +991,7 @@ cat >&5 <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by aria2c $as_me 0.2.1-dev, which was
+It was created by aria2c $as_me 0.2.1, which was
 generated by GNU Autoconf 2.59.  Invocation command line was
 
   $ $0 $@
@@ -1634,7 +1634,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='aria2c'
- VERSION='0.2.1-dev'
+ VERSION='0.2.1'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -5808,7 +5808,7 @@ _ASBOX
 } >&5
 cat >&5 <<_CSEOF
 
-This file was extended by aria2c $as_me 0.2.1-dev, which was
+This file was extended by aria2c $as_me 0.2.1, which was
 generated by GNU Autoconf 2.59.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -5871,7 +5871,7 @@ _ACEOF
 
 cat >>$CONFIG_STATUS <<_ACEOF
 ac_cs_version="\\
-aria2c config.status 0.2.1-dev
+aria2c config.status 0.2.1
 configured by $0, generated by GNU Autoconf 2.59,
   with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\"
 
diff --git a/configure.in b/configure.in
index 3694d7c7..30d6ce4b 100644
--- a/configure.in
+++ b/configure.in
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 #
 AC_PREREQ(2.59)
-AC_INIT(aria2c, 0.2.1-dev, tujikawa@rednoah.com)
+AC_INIT(aria2c, 0.2.1, tujikawa@rednoah.com)
 AM_INIT_AUTOMAKE()
 AM_PATH_CPPUNIT(1.10.2)
 AC_CONFIG_SRCDIR([src/Socket.h])