diff --git a/package.json b/package.json
index 19ce44db..8d57c643 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "documentation": "^8.1.0",
     "markdown-doctest": "^0.9.1",
     "nyc": "^13.0.1",
-    "rollup": "^0.63.5",
+    "rollup": "^0.64.0",
     "rollup-plugin-commonjs": "^9.1.4",
     "rollup-plugin-multi-entry": "^2.0.2",
     "rollup-plugin-node-resolve": "^3.3.0",