diff --git a/package.json b/package.json
index 0cf52a7..627368f 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,7 @@
     "sade": "^1.7.3",
     "style-loader": "^1.1.4",
     "terser-webpack-plugin": "^2.3.5",
-    "ts-loader": "^7.0.0",
+    "ts-loader": "^9.0.0",
     "typescript": "^3.8.3",
     "webpack": "^4.42.1"
   },