diff --git a/beta/slides/reveal.js b/beta/slides/reveal.js
index 4fe3946cb..b1a9842b2 160000
--- a/beta/slides/reveal.js
+++ b/beta/slides/reveal.js
@@ -1 +1 @@
-Subproject commit 4fe3946cb43de57f79aaa7b646aee7e78f4bcc75
+Subproject commit b1a9842b2f4544a2fda546383db38cc7a81f6b74