diff --git a/rack-protection/lib/rack/protection/version.rb b/rack-protection/lib/rack/protection/version.rb
index 34ed0e06..a3d80489 100644
--- a/rack-protection/lib/rack/protection/version.rb
+++ b/rack-protection/lib/rack/protection/version.rb
@@ -4,7 +4,7 @@ module Rack
       VERSION
     end
 
-    SIGNATURE = [1, 3, 0]
+    SIGNATURE = [1, 3, 1]
     VERSION   = SIGNATURE.join('.')
 
     VERSION.extend Comparable