diff --git a/package.json b/package.json
index 3d95473..fff090e 100644
--- a/package.json
+++ b/package.json
@@ -24,10 +24,10 @@
         "clean-webpack-plugin": "^0.1.19",
         "copy-webpack-plugin": "^6.0.0",
         "mocha": "^6.1.4",
-        "ts-loader": "^4.5.0",
+        "ts-loader": "^6.0.0",
         "ts-node": "^8.1.0",
         "typescript": "^3.0.1",
-        "uglifyjs-webpack-plugin": "^1.3.0",
+        "uglifyjs-webpack-plugin": "^2.0.0",
         "webpack": "^5.0.0",
         "webpack-node-externals": "^1.7.2"
     },