diff --git a/CHANGELOG.md b/CHANGELOG.md
index a026154..8d2fb07 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 4.0.0 [unreleased]
+## 4.0.0
 
 - Added support for Elasticsearch 7
 - Added `models` option
diff --git a/lib/searchkick/version.rb b/lib/searchkick/version.rb
index fd36e77..b33df80 100644
--- a/lib/searchkick/version.rb
+++ b/lib/searchkick/version.rb
@@ -1,3 +1,3 @@
 module Searchkick
-  VERSION = "3.1.3"
+  VERSION = "4.0.0"
 end
--
libgit2 0.21.0