diff --git a/package.json b/package.json
index 3e6b8739be..af32c6686c 100644
--- a/package.json
+++ b/package.json
@@ -25,8 +25,8 @@
     "lazypipe": "^1.0.1",
     "merge-stream": "^1.0.1",
     "parse5": "^3.0.2",
-    "polymer-build": "^1.6.0",
-    "run-sequence": "^1.1.0",
+    "polymer-build": "^2.0.0",
+    "run-sequence": "^2.1.0",
     "through2": "^2.0.0",
     "web-component-tester": "^6.0.0"
   },