diff --git a/package.json b/package.json
index 0a219bd..703d60b 100644
--- a/package.json
+++ b/package.json
@@ -100,7 +100,7 @@
     "atom": ">=1.6.0 <2.0.0"
   },
   "dependencies": {
-    "async": "^1.2.1",
+    "async": "^2.0.0",
     "atom-message-panel": "^1.2.4",
     "atom-space-pen-views": "^2.0.5",
     "bluebird": "^3.3.5",