diff --git a/ChangeLog b/ChangeLog
index 260ddf8..6b10f68 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,6 @@
 vsntp change log
 
-2020-02-07
+2020-02-07	version 2.1.1
 	 1. .gitignore Added that excludes generated files by automake and
 	    autoconf.
 	 2. .git: Re-initialized.
diff --git a/NEWS b/NEWS
index 9d08794..3d1b0a7 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,6 @@
 vsntp NEWS
 
-2021-02-07
+2021-02-07	version 2.1.1
 	 1. AUTHORS.zh-tw, INSTALL.zh-tw, NEWS.zh-tw, README.zh-tw, THANKS.zh-tw,
 	    init.d/README.zh-tw, AUTHORS.zh-cn, INSTALL.zh-cn, NEWS.zh-cn,
 	    README.zh-cn, THANKS.zh-cn, init.d/README.zh-cn: Removed messy
diff --git a/configure.ac b/configure.ac
index 901f26f..b20c544 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ([2.69])
-AC_INIT([vsntp], [2.1.0], [imacat@mail.imacat.idv.tw])
+AC_INIT([vsntp], [2.1.1], [imacat@mail.imacat.idv.tw])
 AM_INIT_AUTOMAKE
 AC_CONFIG_SRCDIR([vsntp.c])
 AC_CONFIG_HEADERS([config.h])