diff --git a/lib/helpers/clone.js b/lib/helpers/clone.js
index 4cdd9ecac5f..cd33c138feb 100644
--- a/lib/helpers/clone.js
+++ b/lib/helpers/clone.js
@@ -1,7 +1,5 @@
 'use strict';
 
-
-const cloneRegExp = require('regexp-clone');
 const Decimal = require('../types/decimal128');
 const ObjectId = require('../types/objectid');
 const specialProperties = require('./specialProperties');
@@ -145,4 +143,13 @@ function cloneArray(arr, options) {
   }
 
   return ret;
-}
\ No newline at end of file
+}
+
+function cloneRegExp(regexp) {
+  const ret = new RegExp(regexp.source, regexp.flags);
+
+  if (ret.lastIndex !== regexp.lastIndex) {
+    ret.lastIndex = regexp.lastIndex;
+  }
+  return ret;
+}
diff --git a/package.json b/package.json
index 66cc0331c24..6a8c7a9cc69 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,6 @@
     "mpath": "0.8.4",
     "mquery": "4.0.2",
     "ms": "2.1.2",
-    "regexp-clone": "1.0.0",
     "sift": "13.5.2"
   },
   "devDependencies": {
diff --git a/test/helpers/clone.test.js b/test/helpers/clone.test.js
index 7e0e7132638..d59d631d2c3 100644
--- a/test/helpers/clone.test.js
+++ b/test/helpers/clone.test.js
@@ -148,9 +148,11 @@ describe('clone', () => {
 
     describe('constructor is RegExp', () => {
       it('return new equal date ', () => {
-        const base = new RegExp(/A-Z.*/);
+        const base = new RegExp(/A-Z.*/g);
+        base.lastIndex = 2;
         const cloned = clone(base);
         assert.deepStrictEqual(base, cloned);
+        assert.ok(base.lastIndex === cloned.lastIndex);
       });
     });
   });