diff --git a/build/css/index.css b/build/css/index.css
index 01a9e88f..e05d1bc3 100644
--- a/build/css/index.css
+++ b/build/css/index.css
@@ -1,6 +1,6 @@
 /*!
  * 
- *   simple-keyboard v3.4.19
+ *   simple-keyboard v3.4.20
  *   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 7d6cc955..5755758f 100644
--- a/build/index.js
+++ b/build/index.js
@@ -1,6 +1,6 @@
 /*!
  * 
- *   simple-keyboard v3.4.19
+ *   simple-keyboard v3.4.20
  *   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 36d04e66..38071619 100644
--- a/build/index.modern.js
+++ b/build/index.modern.js
@@ -1,6 +1,6 @@
 /*!
  * 
- *   simple-keyboard v3.4.19 (index.modern.js - Modern Browsers bundle)
+ *   simple-keyboard v3.4.20 (index.modern.js - Modern Browsers bundle)
  *   https://github.com/hodgef/simple-keyboard
  *
  *   NOTE: This modern browsers bundle (index.modern.js) removes all polyfills