diff --git a/CHANGELOG.md b/CHANGELOG.md
index 50cd0269..06048f86 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 2.2.3 / 2022-11-25
+
+* Fix: Escape filename in the Content-Disposition header. [#1841](https://github.com/sinatra/sinatra/pull/1841) by Kunpei Sakai
+
+* Fix: fixed ReDoS for Rack::Protection::IPSpoofing. [#1823](https://github.com/sinatra/sinatra/pull/1823) by @ooooooo-q
+
 ## 2.2.2 / 2022-07-23
 
 * Update mustermann dependency to version 2.
diff --git a/VERSION b/VERSION
index b1b25a5f..58594069 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.2.2
+2.2.3
diff --git a/lib/sinatra/version.rb b/lib/sinatra/version.rb
index f27412dd..d7b67c9d 100644
--- a/lib/sinatra/version.rb
+++ b/lib/sinatra/version.rb
@@ -1,3 +1,3 @@
 module Sinatra
-  VERSION = '2.2.2'
+  VERSION = '2.2.3'
 end
diff --git a/rack-protection/lib/rack/protection/version.rb b/rack-protection/lib/rack/protection/version.rb
index 1193fd03..64a2fc05 100644
--- a/rack-protection/lib/rack/protection/version.rb
+++ b/rack-protection/lib/rack/protection/version.rb
@@ -1,5 +1,5 @@
 module Rack
   module Protection
-    VERSION = '2.2.2'
+    VERSION = '2.2.3'
   end
 end
diff --git a/sinatra-contrib/lib/sinatra/contrib/version.rb b/sinatra-contrib/lib/sinatra/contrib/version.rb
index deb55649..81be0356 100644
--- a/sinatra-contrib/lib/sinatra/contrib/version.rb
+++ b/sinatra-contrib/lib/sinatra/contrib/version.rb
@@ -1,6 +1,6 @@
 module Sinatra
   module Contrib
-    VERSION = '2.2.2'
+    VERSION = '2.2.3'
   end
 end