diff --git a/package.json b/package.json
index 952498f2..d3e9a136 100644
--- a/package.json
+++ b/package.json
@@ -78,7 +78,7 @@
     "raw-loader": "4.0.2",
     "sinon": "11.1.1",
     "source-map-loader": "3.0.0",
-    "ts-loader": "5.4.5",
+    "ts-loader": "9.2.3",
     "ts-node": "8.10.2",
     "tslint": "5.20.1",
     "tslint-eslint-rules": "5.4.0",