diff --git a/README.md b/README.md
index e3d4bcff9..3477220d8 100644
--- a/README.md
+++ b/README.md
@@ -21,17 +21,17 @@ JS Beautifier is hosted on two CDN services: [cdnjs](https://cdnjs.com/libraries
 
 To pull from one of these services include one set of the script tags below in your document:
 ```html
-<script src="https://cdnjs.cloudflare.com/ajax/libs/js-beautify/1.6.4/beautify.js"></script>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/js-beautify/1.6.4/beautify-css.js"></script>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/js-beautify/1.6.4/beautify-html.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/js-beautify/1.6.6/beautify.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/js-beautify/1.6.6/beautify-css.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/js-beautify/1.6.6/beautify-html.js"></script>
 
-<script src="https://cdnjs.cloudflare.com/ajax/libs/js-beautify/1.6.4/beautify.min.js"></script>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/js-beautify/1.6.4/beautify-css.min.js"></script>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/js-beautify/1.6.4/beautify-html.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/js-beautify/1.6.6/beautify.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/js-beautify/1.6.6/beautify-css.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/js-beautify/1.6.6/beautify-html.min.js"></script>
 
-<script src="https://cdn.rawgit.com/beautify-web/js-beautify/v1.6.4/js/lib/beautify.js"></script>
-<script src="https://cdn.rawgit.com/beautify-web/js-beautify/v1.6.4/js/lib/beautify-css.js"></script>
-<script src="https://cdn.rawgit.com/beautify-web/js-beautify/v1.6.4/js/lib/beautify-html.js"></script>
+<script src="https://cdn.rawgit.com/beautify-web/js-beautify/v1.6.6/js/lib/beautify.js"></script>
+<script src="https://cdn.rawgit.com/beautify-web/js-beautify/v1.6.6/js/lib/beautify-css.js"></script>
+<script src="https://cdn.rawgit.com/beautify-web/js-beautify/v1.6.6/js/lib/beautify-html.js"></script>
 ```
 Disclaimer: These are free services, so there are [no uptime or support guarantees](https://github.com/rgrove/rawgit/wiki/Frequently-Asked-Questions#i-need-guaranteed-100-uptime-should-i-use-cdnrawgitcom).
 
@@ -304,4 +304,4 @@ Thanks also to Jason Diamond, Patrick Hof, Nochum Sossonko, Andreas Schneider, D
 Vasilevsky, Vital Batmanov, Ron Baldwin, Gabriel Harrison, Chris J. Shull,
 Mathias Bynens, Vittorio Gambaletta and others.
 
-(README.md: js-beautify@1.6.4)
+(README.md: js-beautify@1.6.6)