diff --git a/README.md b/README.md
index 23a21f9b..5a06523d 100644
--- a/README.md
+++ b/README.md
@@ -94,13 +94,16 @@ And then execute:
     
 ### Supported Ruby Versions
 
-<i>OmniAuth::OpenIDConnect renewed</i> is tested under Ruby v2.5, v2.6, v2.7.
+<i>OmniAuth::OpenIDConnect renewed</i> is tested under Ruby v2.5, v2.6, v2.7 and v3.0.
+
 
 
 
 ## Usage
 
-See https://www.nslabs.jp/omniauth-openid-connect.rhtml
+A sample Rails program: https://gitlab.com/netsphere/rails-examples/-/tree/main/omniauth-oidc-rp-sample/
+
+Manual: https://www.nslabs.jp/omniauth-openid-connect.rhtml
 
 
 ### Options Overview
diff --git a/lib/omniauth/openid_connect/version.rb b/lib/omniauth/openid_connect/version.rb
index f7c4b006..48286a90 100644
--- a/lib/omniauth/openid_connect/version.rb
+++ b/lib/omniauth/openid_connect/version.rb
@@ -2,6 +2,6 @@
 
 module OmniAuth
   module OpenIDConnect
-    VERSION = '0.9.0.pre'
+    VERSION = '0.9.1'
   end
 end