diff --git a/package.json b/package.json
index 1f4d864ebb9d..936175b79549 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
     "gulp-less": "^3.0.3",
     "gulp-util": "^3.0.6",
     "q": "^1.4.1",
-    "rollup": "^0.16.1",
+    "rollup": "^0.21.0",
     "tree-kill": "^0.1.1",
     "yargs": "^3.15.0"
   },
diff --git a/tasks/build.js b/tasks/build.js
index 92ffecf77b0d..5e817f90210f 100644
--- a/tasks/build.js
+++ b/tasks/build.js
@@ -60,7 +60,7 @@ var bundle = function (src, dest) {
     }).then(function () {
         deferred.resolve();
     }).catch(function (err) {
-        console.error(err);
+        console.error('build: Error during rollup', err.stack);
     });
 
     return deferred.promise;