diff --git a/VERSION b/VERSION
index b384bc8..24f3ce1 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.10.3-1582459490
+4.0.0-1586979302
diff --git a/egison.rb b/egison.rb
index b3ec51f..ba52e67 100644
--- a/egison.rb
+++ b/egison.rb
@@ -1,10 +1,10 @@
 class Egison < Formula
-  VERSION = "3.10.3"
+  VERSION = "4.0.0"
   version VERSION
   desc "A purely functional programming language with non-linear pattern-matching against non-free data types"
   homepage "https://www.egison.org/"
   url "https://github.com/egison/homebrew-egison/releases/download/#{VERSION}/egison_darwin_x86_64_#{VERSION}.zip"
-  sha256 "1e08e7466b1388341e042720a6262f81de5f09e9570db6e03822059a3f0eec2f"
+  sha256 "506fad29c302f8fefa9deb2a9c812f110fc8cdd728608cc37797c51913c5d47f"
 
   def install
     bin.install "bin/egison"