diff --git a/build/css/index.css b/build/css/index.css
index 46a6979d..a9178370 100644
--- a/build/css/index.css
+++ b/build/css/index.css
@@ -1,6 +1,6 @@
 /*!
  * 
- *   simple-keyboard v3.0.20
+ *   simple-keyboard v3.0.21
  *   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 2582a5b7..2441cd8a 100644
--- a/build/index.js
+++ b/build/index.js
@@ -1,6 +1,6 @@
 /*!
  * 
- *   simple-keyboard v3.0.20
+ *   simple-keyboard v3.0.21
  *   https://github.com/hodgef/simple-keyboard
  *
  *   Copyright (c) Francisco Hodge (https://github.com/hodgef) and project contributors.