diff --git a/package.json b/package.json
index d360e8b..5543791 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "sirv": "^0.2.0"
   },
   "devDependencies": {
-    "npm-run-all": "^4.1.2",
+    "npm-run-all": "^4.1.5",
     "sapper": "^0.22.1",
     "svelte": "^2.0.0",
     "svelte-loader": "^2.9.0",