diff --git a/core/package.json b/core/package.json
index 40d2f43aaa..c1641a4ab9 100644
--- a/core/package.json
+++ b/core/package.json
@@ -48,6 +48,7 @@
     "np": "^3.0.4",
     "pixelmatch": "4.0.2",
     "puppeteer": "1.8.0",
+    "rollup": "^0.66.4",
     "rollup-plugin-node-resolve": "^3.4.0",
     "stylelint": "~9.6.0",
     "stylelint-order": "~1.0.0",