diff --git a/.eslintrc.json b/.eslintrc.json
index 25d13477..4285bbc7 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -19,7 +19,8 @@
     "no-cond-assign": "off",
     "no-useless-escape": "off",
     "one-var": "off",
-    "no-control-regex": "off"
+    "no-control-regex": "off",
+    "no-prototype-builtins": "off"
   },
   "env": {
     "node": true,
diff --git a/docs/demo/demo.js b/docs/demo/demo.js
index fafb336f..05649583 100644
--- a/docs/demo/demo.js
+++ b/docs/demo/demo.js
@@ -122,7 +122,7 @@ function setInitialVersion() {
           return res.json();
         })
         .then(function(json) {
-          markedVersions['master'] = 'https://cdn.jsdelivr.net/gh/markedjs/marked@' + json[0].sha + '/lib/marked.js';
+          markedVersions.master = 'https://cdn.jsdelivr.net/gh/markedjs/marked@' + json[0].sha + '/lib/marked.js';
         })
         .catch(function() {
           // do nothing
diff --git a/test/.eslintrc.json b/test/.eslintrc.json
index 9f03f420..96779e56 100644
--- a/test/.eslintrc.json
+++ b/test/.eslintrc.json
@@ -16,6 +16,7 @@
     "no-useless-escape": "off",
     "one-var": "off",
     "no-control-regex": "off",
+    "no-prototype-builtins": "off",
 
     "prefer-const": "error",
     "no-var": "error"