diff --git a/README.md b/README.md
index 093493d..76dfeaa 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,8 @@ Miteru is an experimental phishing kit detection tool.
   - [urlscan.io](https://urlscan.io/search/#certstream-suspicious)
   - [OpenPhish community feed](https://openphish.com/feed.txt)
   - [PhishTank feed](http://data.phishtank.com/data/online-valid.csv)
-- It checks a suspicious URL whether it has a directory listing and contains a phishing kit (`*.zip` file) or not.
+- It checks a suspicious URL whether it has a directory listing and contains a phishing kit (compressed file) or not.
+  - Note: compressed file = `*.zip`, `*.rar`, `*.7z`, `*.tar` and `*.gz`.
 
 ## Installation
 
diff --git a/lib/miteru/version.rb b/lib/miteru/version.rb
index 33d581b..d1ab6fc 100644
--- a/lib/miteru/version.rb
+++ b/lib/miteru/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Miteru
-  VERSION = "0.8.0"
+  VERSION = "0.9.0"
 end