diff --git a/retdb_admin/packrat/src/rCharts/ramnathv-rCharts-4be2f8e/inst/libraries/vega/package.json b/retdb_admin/packrat/src/rCharts/ramnathv-rCharts-4be2f8e/inst/libraries/vega/package.json
index 54f789d..2988d4b 100644
--- a/retdb_admin/packrat/src/rCharts/ramnathv-rCharts-4be2f8e/inst/libraries/vega/package.json
+++ b/retdb_admin/packrat/src/rCharts/ramnathv-rCharts-4be2f8e/inst/libraries/vega/package.json
@@ -22,6 +22,6 @@
     "d3": "3.1.4"
   },
   "devDependencies": {
-    "uglify-js": "1.3.4"
+    "uglify-js": "3.6.5"
   }
 }