diff --git a/lib/digest/keccak/version.rb b/lib/digest/keccak/version.rb
index 8ecf744..eb55e2d 100644
--- a/lib/digest/keccak/version.rb
+++ b/lib/digest/keccak/version.rb
@@ -2,6 +2,6 @@
 
 module Digest
   class Keccak
-    VERSION = '1.3.0'
+    VERSION = "1.3.1"
   end
 end