diff --git a/README.md b/README.md
index 17ffd33..b6d160a 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,9 @@ It's an (un)fortunate coincidence that a Open/LibreOffice presentation tool is c
 VERSION HISTORY
 -----------------
 
+### 0.5.3 (in development)
+
+
 ### 0.5.2 ([browse](http://github.com/bartaz/impress.js/tree/0.5.2), [zip](http://github.com/bartaz/impress.js/zipball/0.5.2), [tar](http://github.com/bartaz/impress.js/tarball/0.5.2))
 
 #### DOCUMENTATION RELEASE
diff --git a/js/impress.js b/js/impress.js
index f537010..cd4a293 100644
--- a/js/impress.js
+++ b/js/impress.js
@@ -11,7 +11,7 @@
  *
  * ------------------------------------------------
  *  author:  Bartek Szopka
- *  version: 0.5.2
+ *  version: 0.5.3 (in development)
  *  url:     http://bartaz.github.com/impress.js/
  *  source:  http://github.com/bartaz/impress.js/
  */