diff --git a/package-lock.json b/package-lock.json
index 111dde3..bd9d9a9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -820,10 +820,10 @@
     "concat-with-sourcemaps": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/concat-with-sourcemaps/-/concat-with-sourcemaps-1.0.4.tgz",
-      "integrity": "sha1-9Vs74q60dgGxCi1SWcz7cP0vHdY=",
+      "integrity": "sha512-mzlh4cb5VYG79rDfntfUXFeDUm5va3umIneTWet/fut4mWb/LcRBPtXsyW4Ilyazgcuh9HB4sHI+jx/qXYJxrA==",
       "dev": true,
       "requires": {
-        "source-map": "0.5.7"
+        "source-map": "^0.5.1"
       }
     },
     "console-control-strings": {