diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9c91221..1bb5fbb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-# Unreleased
+# 9.0.0
 
 * Switch from using `redis` gem to `redis-client`
 * BREAKING: Remove `redis-namespace` dependency and support for Redis namespaces
diff --git a/lib/govuk_sidekiq/version.rb b/lib/govuk_sidekiq/version.rb
index adcb6d5..2b4c439 100644
--- a/lib/govuk_sidekiq/version.rb
+++ b/lib/govuk_sidekiq/version.rb
@@ -1,3 +1,3 @@
 module GovukSidekiq
-  VERSION = "8.0.1".freeze
+  VERSION = "9.0.0".freeze
 end