diff --git a/package.json b/package.json
index bbc50f9..6fba78d 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
     "rimraf": "^2.6.1",
     "rollup": "^0.60.1",
     "rollup-plugin-buble": "^0.18.0",
-    "rollup-plugin-commonjs": "^8.1.0",
+    "rollup-plugin-commonjs": "^9.1.4",
     "rollup-plugin-json": "^2.3.0",
     "rollup-plugin-node-resolve": "^3.0.0",
     "snazzy": "^7.0.0",