diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index febf100..e84b6c7
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "babel-preset-es2015": "^6.3.13",
     "chai": "^3.5.0",
     "chai-http": "^2.0.1",
-    "codecov": "^1.0.1",
+    "codecov": "^3.7.1",
     "istanbul": "^0.4.2",
     "mocha": "^2.4.5"
   }