diff --git a/package.json b/package.json
index 4233d1a..0dae84f 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "ascjs": "^3.0.1",
     "coveralls": "^3.0.5",
     "istanbul": "^0.4.5",
-    "rollup": "^1.17.0",
+    "rollup": "1.18.0",
     "rollup-plugin-node-resolve": "^5.2.0",
     "uglify-js": "^3.6.0"
   },