diff --git a/package.json b/package.json
index bfc1a87f..2fd04604 100644
--- a/package.json
+++ b/package.json
@@ -57,7 +57,7 @@
     "rollup": "0.50.0",
     "rollup-plugin-commonjs": "8.2.6",
     "rollup-plugin-node-resolve": "3.0.0",
-    "source-map": "^0.6.1",
+    "source-map": "^0.7.3",
     "tiny-lr": "^1.1.1",
     "tslint": "^5.8.0",
     "tslint-eslint-rules": "^4.1.1",