diff --git a/.eslintrc.js b/.eslintrc.js
index 3eb77a64c98b..3ede5c1cb589 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -447,6 +447,8 @@ const base = {
   'regexp/prefer-d': 'error',
   // enforce using `+` quantifier
   'regexp/prefer-plus-quantifier': 'error',
+  // enforce using quantifier
+  'regexp/prefer-quantifier': 'error',
   // enforce using `?` quantifier
   'regexp/prefer-question-quantifier': 'error',
   // enforce using `*` quantifier
diff --git a/package.json b/package.json
index 6fbe73cd73ba..1cfc99c9b411 100644
--- a/package.json
+++ b/package.json
@@ -31,14 +31,14 @@
     "core-js-pure": "file:./packages/core-js-pure",
     "david": "^12.0.0",
     "es-observable": "git+https://github.com/tc39/proposal-observable.git#d3404f06bc70c7c578a5047dfb3dc813730e3319",
-    "eslint": "^7.20.0",
+    "eslint": "^7.21.0",
     "eslint-plugin-eslint-comments": "^3.2.0",
     "eslint-plugin-import": "^2.22.1",
     "eslint-plugin-node": "^11.1.0",
     "eslint-plugin-optimize-regex": "^1.2.0",
     "eslint-plugin-qunit": "^5.3.0",
     "eslint-plugin-radar": "~0.2.1",
-    "eslint-plugin-regexp": "~0.1.1",
+    "eslint-plugin-regexp": "~0.2.1",
     "eslint-plugin-unicorn": "^28.0.2",
     "karma": "^5.2.3",
     "karma-chrome-launcher": "^3.1.0",
diff --git a/packages/core-js/internals/get-substitution.js b/packages/core-js/internals/get-substitution.js
index 7e55a619b8f3..074226dae403 100644
--- a/packages/core-js/internals/get-substitution.js
+++ b/packages/core-js/internals/get-substitution.js
@@ -2,8 +2,8 @@ var toObject = require('../internals/to-object');
 
 var floor = Math.floor;
 var replace = ''.replace;
-var SUBSTITUTION_SYMBOLS = /\$([$&'`]|\d\d?|<[^>]*>)/g;
-var SUBSTITUTION_SYMBOLS_NO_NAMED = /\$([$&'`]|\d\d?)/g;
+var SUBSTITUTION_SYMBOLS = /\$([$&'`]|\d{1,2}|<[^>]*>)/g;
+var SUBSTITUTION_SYMBOLS_NO_NAMED = /\$([$&'`]|\d{1,2})/g;
 
 // https://tc39.es/ecma262/#sec-getsubstitution
 module.exports = function (matched, str, position, captures, namedCaptures, replacement) {