diff --git a/CHANGELOG.md b/CHANGELOG.md
index a68bfc9..4a9ef09 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 ## [Unreleased]
 
+No notable changes.
+
+## [0.9.0] - 2024-06-10
+
 ### Changed
 
 - Use `attr` for principal and resource attributes ([#157](https://github.com/cerbos/cerbos-sdk-ruby/pull/157))
@@ -85,7 +89,8 @@
 
 - Initial implementation of `Cerbos::Client` ([#2](https://github.com/cerbos/cerbos-sdk-ruby/pull/2))
 
-[Unreleased]: https://github.com/cerbos/cerbos-sdk-ruby/compare/v0.8.0...HEAD
+[Unreleased]: https://github.com/cerbos/cerbos-sdk-ruby/compare/v0.9.0...HEAD
+[0.9.0]: https://github.com/cerbos/cerbos-sdk-ruby/compare/v0.8.0...v0.9.0
 [0.8.0]: https://github.com/cerbos/cerbos-sdk-ruby/compare/v0.7.0...v0.8.0
 [0.7.0]: https://github.com/cerbos/cerbos-sdk-ruby/compare/v0.6.1...v0.7.0
 [0.6.1]: https://github.com/cerbos/cerbos-sdk-ruby/compare/v0.6.0...v0.6.1
diff --git a/Gemfile.lock b/Gemfile.lock
index b300481..ce93ad8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    cerbos (0.8.0)
+    cerbos (0.9.0)
       google-protobuf (>= 3.21.12, < 4.0)
       grpc (~> 1.46)
 
diff --git a/lib/cerbos/version.rb b/lib/cerbos/version.rb
index 8d9a1f9..610ca84 100644
--- a/lib/cerbos/version.rb
+++ b/lib/cerbos/version.rb
@@ -2,5 +2,5 @@
 
 module Cerbos
   # Current version of the `cerbos` gem.
-  VERSION = "0.8.0"
+  VERSION = "0.9.0"
 end