diff --git a/package.json b/package.json
index 43b74a1..633456e 100644
--- a/package.json
+++ b/package.json
@@ -99,7 +99,7 @@
     "run-sequence": "2.2.1",
     "rxjs": "^6.2.2",
     "sass-loader": "^7.1.0",
-    "source-map-loader": "0.2.3",
+    "source-map-loader": "0.2.4",
     "to-string-loader": "1.1.5",
     "travis-status": "^3.0.1",
     "tslint": "^5.11.0",