diff --git a/package.json b/package.json
index 097202f..928a68c 100644
--- a/package.json
+++ b/package.json
@@ -61,7 +61,7 @@
     "mocha": "^3.0.0",
     "remap-istanbul": "^0.6.4",
     "require-relative": "^0.8.7",
-    "rollup": "^0.35.3",
+    "rollup": "^0.34.0",
     "rollup-plugin-buble": "^0.12.1",
     "rollup-plugin-commonjs": "^3.0.0",
     "rollup-plugin-json": "^2.0.0",