diff --git a/CHANGES.md b/CHANGES.md
index bb67d77..55665d6 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,4 +1,4 @@
-4.0.0.pre (2016-12-04)
+4.0.0 (2016-12-04)
 ----------------------
 
 * [#141](https://github.com/cryptosphere/rbnacl/pull/141)
diff --git a/lib/rbnacl/version.rb b/lib/rbnacl/version.rb
index 4856f09..5eb52da 100644
--- a/lib/rbnacl/version.rb
+++ b/lib/rbnacl/version.rb
@@ -4,5 +4,5 @@
 # NaCl/libsodium for Ruby
 module RbNaCl
   # The library's version
-  VERSION = "4.0.0.pre"
+  VERSION = "4.0.0"
 end