diff --git a/configs/babel.js b/configs/babel.js
index c5cee70..c67bed5 100644
--- a/configs/babel.js
+++ b/configs/babel.js
@@ -1,5 +1,9 @@
+let _ = require('lodash');
 let _basic = require('./basic');
 
+// see https://github.com/eslint/eslint/issues/12592
+_basic = _.cloneDeep(_basic);
+
 module.exports = {
   parser: 'babel-eslint',
 
diff --git a/configs/typescript-eslint-recommended.js b/configs/typescript-eslint-recommended.js
index fc2db4f..e59ff8c 100644
--- a/configs/typescript-eslint-recommended.js
+++ b/configs/typescript-eslint-recommended.js
@@ -1,10 +1,13 @@
 /* eslint-disable lodash/prefer-lodash-method */
 
+let _ = require('lodash');
 let _basic = require('./basic');
 let _recommended = require('@typescript-eslint/eslint-plugin/dist/configs/recommended.json');
 
-// poor man's _.cloneDeep
-let _restoreBasicOverrides = JSON.parse(JSON.stringify(_recommended));
+// see https://github.com/eslint/eslint/issues/12592
+_basic = _.cloneDeep(_basic);
+
+let _restoreBasicOverrides = _.cloneDeep(_recommended);
 
 let filterObject = function(obj, predicate) {
   // eslint-disable-next-line fp/no-mutating-assign
diff --git a/configs/typescript.js b/configs/typescript.js
index a25fe02..64dff01 100644
--- a/configs/typescript.js
+++ b/configs/typescript.js
@@ -14,6 +14,11 @@ let _basic = require('./basic');
 let _babel = require('./babel');
 let _restoreBasicOverrides = require('./typescript-eslint-recommended');
 
+// see https://github.com/eslint/eslint/issues/12592
+_basic = _.cloneDeep(_basic);
+_babel = _.cloneDeep(_babel);
+
+
 module.exports = {
   extends: [
     'plugin:@typescript-eslint/recommended'