diff --git a/leaflet.markercluster/package.json b/leaflet.markercluster/package.json
index 8a0fda8..422c0b2 100644
--- a/leaflet.markercluster/package.json
+++ b/leaflet.markercluster/package.json
@@ -19,7 +19,7 @@
 		"leaflet": "^1.3.1",
 		"mocha": "6.0.2",
 		"phantomjs-prebuilt": "^2.1.14",
-		"rollup": "1.3.2",
+		"rollup": "3.29.5",
 		"rollup-plugin-git-version": "0.2.1",
 		"rollup-plugin-json": "3.1.0",
 		"uglify-js": "3.4.9"