diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1941eebc..beba83da 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,12 @@ Note: These changes are not considered notable:
 
 ## [Unreleased]
 
+## [5.0.0] - 2023-10-30
+### Added
+- change seed for variantutils to ensure fair distribution (#160)
+  - client specification is [here](https://github.com/Unleash/client-specification/tree/v5.0.2/specifications)
+  - A new seed is introduced to ensure a fair distribution for variants, addressing the issue of skewed variant distribution due to using the same hash string for both gradual rollout and variant allocation.
+
 ## [4.6.0] - 2023-10-16
 ### Added
 - dependant toggles (#155)
diff --git a/README.md b/README.md
index 8da1defe..dd5b7123 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ Leverage the [Unleash Server](https://github.com/Unleash/unleash) for powerful f
 Add this line to your application's Gemfile:
 
 ```ruby
-gem 'unleash', '~> 4.6.0'
+gem 'unleash', '~> 5.0.0'
 ```
 
 And then execute:
diff --git a/lib/unleash/version.rb b/lib/unleash/version.rb
index 8e598405..b060a3dd 100644
--- a/lib/unleash/version.rb
+++ b/lib/unleash/version.rb
@@ -1,3 +1,3 @@
 module Unleash
-  VERSION = "4.6.0".freeze
+  VERSION = "5.0.0".freeze
 end