diff --git a/lib/codemirror/package.json b/lib/codemirror/package.json
index c1302f4..c4450d0 100644
--- a/lib/codemirror/package.json
+++ b/lib/codemirror/package.json
@@ -19,7 +19,7 @@
     "blint": "1.0.3",
     "node-static": "0.7.10",
     "phantomjs-prebuilt": "2.1.16",
-    "rollup": "0.57.1",
+    "rollup": "0.66.0",
     "rollup-plugin-buble": "0.19.2",
     "rollup-watch": "3.2.2"
   },