diff --git a/package.json b/package.json
index a2451f5..fb01be1 100644
--- a/package.json
+++ b/package.json
@@ -30,13 +30,13 @@
     "coveralls": "^2.11.3",
     "es6-promise": "^3.0.2",
     "grunt": "^0.4.5",
-    "grunt-banner": "^0.4.0",
+    "grunt-banner": "^0.5.0",
     "grunt-contrib-clean": "^0.6.0",
     "grunt-contrib-nodeunit": "^0.4.1",
     "grunt-contrib-watch": "^0.6.1",
     "grunt-eslint": "^17.1.0",
     "grunt-karma": "^0.12.0",
-    "grunt-ts": "^4.2.0",
+    "grunt-ts": "^5.0.0-beta.5",
     "grunt-update-json": "^0.2.1",
     "grunt-webpack": "^1.0.11",
     "jasmine-core": "^2.3.4",