diff --git a/CHANGELOG.md b/CHANGELOG.md
index eaaa16b1..fd7b928b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,15 @@
 # Changelog
 
+# 3.21.0
+
+  * Don't use deprecated Rack::VERSION for Rack >= 3
+
+    Thanks to [Étienne Barrié](https://github.com/etiennebarrie)
+
+  * Updated HTTPClient adapter, to build request signature using the URI after filters have been applied.
+
+    Thanks to [Matt Brown](https://github.com/mattbnz)
+
 # 3.20.0
 
   * Optimised EmHttpRequestAdapter performance.
diff --git a/README.md b/README.md
index 3aefba34..88195fa3 100644
--- a/README.md
+++ b/README.md
@@ -1193,6 +1193,8 @@ People who submitted patches and new features or suggested improvements. Many th
 * Earlopain
 * James Brown
 * Kazuhiro NISHIYAMA
+* Étienne Barrié
+* Matt Brown
 
 For a full list of contributors you can visit the
 [contributors](https://github.com/bblimke/webmock/contributors) page.
diff --git a/lib/webmock/version.rb b/lib/webmock/version.rb
index 47fc2d77..1866161c 100644
--- a/lib/webmock/version.rb
+++ b/lib/webmock/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module WebMock
-  VERSION = '3.20.0' unless defined?(::WebMock::VERSION)
+  VERSION = '3.21.0' unless defined?(::WebMock::VERSION)
 end