diff --git a/package.json b/package.json
index eac6544..267a350 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,6 @@
     "svgo": "~0.5.1",
     "pdfkit": "~0.7.1",
     "phantomjs-prebuilt": "~2.1.7",
-    "es6-promise": "~2.1.0",
     "request": "~2.55.0",
     "redis": "~1.0.0",
     "camp": "~16.2.0",