diff --git a/CHANGES.md b/CHANGES.md
index 23916db7..25f1fcaf 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,4 +1,4 @@
-## 0.18.0 (TBD)
+## 0.18.0 (2020-12-05)
 
 [0.18.0]: https://github.com/celluloid/celluloid/compare/v0.17.3...v0.18.0
 
diff --git a/lib/celluloid/version.rb b/lib/celluloid/version.rb
index 635ab82f..cac55eb7 100644
--- a/lib/celluloid/version.rb
+++ b/lib/celluloid/version.rb
@@ -1,3 +1,3 @@
 module Celluloid
-  VERSION = "0.18.0.pre2".freeze
+  VERSION = "0.18.0".freeze
 end