diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4adde7c..3a8c674 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.2.2](https://github.com/matteoredz/rack-idempotency_key/compare/v0.2.1...v0.2.2) (2025-01-31)
+
+
+### Miscellaneous Chores
+
+* explicitly add rack >= 2 runtime dependency ([#22](https://github.com/matteoredz/rack-idempotency_key/issues/22)) ([366bfa8](https://github.com/matteoredz/rack-idempotency_key/commit/366bfa853afe75ce6b0811c8b01246fd965dc5b2))
+
 ## [0.2.1](https://github.com/matteoredz/rack-idempotency_key/compare/v0.2.0...v0.2.1) (2025-01-31)
 
 
diff --git a/lib/rack/idempotency_key/version.rb b/lib/rack/idempotency_key/version.rb
index b3bbed7..93e389b 100644
--- a/lib/rack/idempotency_key/version.rb
+++ b/lib/rack/idempotency_key/version.rb
@@ -2,6 +2,6 @@
 
 module Rack
   class IdempotencyKey
-    VERSION = "0.2.1"
+    VERSION = "0.2.2"
   end
 end