diff --git a/package.json b/package.json
index b27d08eb..42d05a6c 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "rollup": "^0.41.4",
     "rollup-plugin-memory": "^2.0.0",
     "rollup-plugin-node-resolve": "^2.0.0",
-    "source-map": "^0.5.6"
+    "source-map": "^0.7.4"
   },
   "devDependencies": {
     "babel-core": "^6.22.1",