diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index 5407d41..da7ae9b
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
   "devDependencies": {
     "chai": "^3.5.0",
     "chai-as-promised": "^5.3.0",
-    "eslint": "^3.19.0",
+    "eslint": "^4.19.1",
     "eslint-config-standard": "^10.2.1",
     "eslint-plugin-import": "^2.7.0",
     "eslint-plugin-mocha": "^4.9.0",