diff --git a/package.json b/package.json
index b0eba1e9..d2c31832 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,6 @@
         "colors": "~1.0.3"
     },
     "devDependencies": {
-        "acorn": "~0.6.0",
         "escodegen": "~1.3.3",
         "esfuzz": "~0.3.1",
         "estraverse": "~1.5.1"