diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4a830d841..cd8500b9f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 All notable changes to this project will be documented in this file. For info on how to format all future additions to this file please reference [Keep A Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## [3.0.6.1] - 2023-03-13
+
+- [CVE-2023-27539] Avoid ReDoS in header parsing
+
 ## [3.0.4.1] - 2023-03-02
 
 - [CVE-2023-27530] Introduce multipart_total_part_limit to limit total parts
diff --git a/lib/rack/version.rb b/lib/rack/version.rb
index f58723080..68337d361 100644
--- a/lib/rack/version.rb
+++ b/lib/rack/version.rb
@@ -25,7 +25,7 @@ def self.version
     VERSION
   end
 
-  RELEASE = "3.0.6"
+  RELEASE = "3.0.6.1"
 
   # Return the Rack release as a dotted string.
   def self.release