diff --git a/package.json b/package.json
index 431f6ca..6459980 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,6 @@
     "README.md"
   ],
   "dependencies": {
-    "async": "^1.5.0",
     "bit-twiddle": "^1.0.2",
     "earcut": "^2.0.7",
     "eventemitter3": "^1.1.1",