diff --git a/lib/rack/version.rb b/lib/rack/version.rb
index 1aee4daa7..cc4de31aa 100644
--- a/lib/rack/version.rb
+++ b/lib/rack/version.rb
@@ -20,7 +20,7 @@ def self.version
     VERSION.join(".")
   end
 
-  RELEASE = "2.2.7"
+  RELEASE = "2.2.8"
 
   # Return the Rack release as a dotted string.
   def self.release