diff --git a/build/css/index.css b/build/css/index.css
index e9a750b8..1faef31d 100644
--- a/build/css/index.css
+++ b/build/css/index.css
@@ -1,6 +1,6 @@
 /*!
  * 
- *   simple-keyboard v3.5.30
+ *   simple-keyboard v3.5.31
  *   https://github.com/hodgef/simple-keyboard
  *
  *   Copyright (c) Francisco Hodge (https://github.com/hodgef) and project contributors.
diff --git a/build/index.js b/build/index.js
index cfb57d42..10352a32 100644
--- a/build/index.js
+++ b/build/index.js
@@ -1,6 +1,6 @@
 /*!
  * 
- *   simple-keyboard v3.5.30
+ *   simple-keyboard v3.5.31
  *   https://github.com/hodgef/simple-keyboard
  *
  *   Copyright (c) Francisco Hodge (https://github.com/hodgef) and project contributors.
diff --git a/build/index.modern.js b/build/index.modern.js
index c054df34..db061206 100644
--- a/build/index.modern.js
+++ b/build/index.modern.js
@@ -1,6 +1,6 @@
 /*!
  * 
- *   simple-keyboard v3.5.30 (index.modern.js - Modern Browsers bundle)
+ *   simple-keyboard v3.5.31 (index.modern.js - Modern Browsers bundle)
  *   https://github.com/hodgef/simple-keyboard
  *
  *   NOTE: This modern browsers bundle (index.modern.js) removes all polyfills