diff --git a/package.json b/package.json
index 91657637..ddb279a6 100644
--- a/package.json
+++ b/package.json
@@ -132,7 +132,7 @@
     "rollup-plugin-node-builtins": "^2.1.2",
     "rollup-plugin-node-resolve": "^3.3.0",
     "rollup-plugin-sourcemaps": "^0.4.2",
-    "rollup-plugin-uglify": "^4.0.0",
+    "rollup-plugin-uglify": "^5.0.0",
     "semantic-release": "^15.0.0",
     "ts-jest": "^23.0.0",
     "ts-node": "^7.0.0",