diff --git a/mainPage/informative/training/reveal.js/package.json b/mainPage/informative/training/reveal.js/package.json
index 201c6bf..ff56407 100644
--- a/mainPage/informative/training/reveal.js/package.json
+++ b/mainPage/informative/training/reveal.js/package.json
@@ -24,7 +24,7 @@
   "dependencies": {
     "underscore": "~1.5.1",
     "express": "~2.5.9",
-    "mustache": "~0.7.2",
+    "mustache": "~4.0.0",
     "socket.io": "~0.9.16"
   },
   "devDependencies": {