diff --git a/package.json b/package.json
index 693b44d0..6f44cef4 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "ava": "^0.25.0",
     "markdown-doctest": "^0.9.1",
     "nyc": "^13.0.0",
-    "rollup": "^0.63.0",
+    "rollup": "^0.63.2",
     "rollup-plugin-commonjs": "^9.1.3",
     "rollup-plugin-json": "^3.0.0",
     "rollup-plugin-multi-entry": "^2.0.2",