diff --git a/index.js b/index.js
index 290ba7e..233f555 100644
--- a/index.js
+++ b/index.js
@@ -173,9 +173,16 @@ module.exports = {
       'always',
       { exceptAftersingleLine: true }
     ],
-    'max-depth': null, // https://eslint.org/docs/rules/max-depth // enforce a maximum depth that blocks can be nested
-    'max-len': null, // https://eslint.org/docs/rules/max-len // enforce a maximum line length
-    'max-lines': null, // https://eslint.org/docs/rules/max-lines // enforce a maximum number of lines per file
+    'max-depth': ['error', 4],
+    'max-len': ['error', { code: 80, tabWidth: 4 }],
+    'max-lines': [
+      'error',
+      {
+        max: 300,
+        skipBlankLines: true,
+        ignoreComments: true
+      }
+    ],
     'max-lines-per-function': null, // https://eslint.org/docs/rules/max-lines-per-function // enforce a maximum number of line of code in a function
     'max-nested-callbacks': null, // https://eslint.org/docs/rules/max-nested-callbacks // enforce a maximum depth that callbacks can be nested
     'max-params': null, // https://eslint.org/docs/rules/max-params // enforce a maximum number of parameters in function definitions