diff --git a/Makefile b/Makefile
index 37476c8..48972ee 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 NAME=fmcsadmin
-VERSION=0.9.1-dev
+VERSION=0.9.1
 
 GOCMD=go
 GOBUILD=$(GOCMD) build
diff --git a/release-notes.txt b/release-notes.txt
index 5591eb1..1dc54ce 100644
--- a/release-notes.txt
+++ b/release-notes.txt
@@ -2,7 +2,8 @@ fmcsadmin
 (c) 2017-2018 Emic Corporation <https://www.emic.co.jp/>
 This software is distributed under the Apache License, Version 2.0, see LICENSE.txt and NOTICE.txt for more information.
 
-Version: 0.9.1 (in development)
+Version: 0.9.1 (beta)
+Date: February 15, 2018
 - Add error messages for the FileMaker error code 10006 and 10908.
 - Add NOTICE.txt to the distribution file.
 - [BUG FIX] Fix logging out process.