diff --git a/lib/httpClient.js b/lib/httpClient.js
index 027d95fd..95dc77eb 100644
--- a/lib/httpClient.js
+++ b/lib/httpClient.js
@@ -8,7 +8,7 @@ const retimer = require('retimer')
 const HTTPParser = require('http-parser-js').HTTPParser
 const RequestIterator = require('./requestIterator')
 const noop = require('./noop')
-const clone = require('clone')
+const clone = require('lodash.clonedeep')
 const PipelinedRequestsQueue = require('./pipelinedRequestsQueue')
 
 function Client (opts) {
diff --git a/lib/requestIterator.js b/lib/requestIterator.js
index 1b1a5611..a8fa5761 100644
--- a/lib/requestIterator.js
+++ b/lib/requestIterator.js
@@ -3,7 +3,7 @@
 const hyperid = require('hyperid')(true)
 const inherits = require('util').inherits
 const requestBuilder = require('./httpRequestBuilder')
-const clone = require('clone')
+const clone = require('lodash.clonedeep')
 
 const toHeaderKeyValue = (headersArray) => {
   const headersKeyValue = {}
diff --git a/lib/subargAliases.js b/lib/subargAliases.js
index d7f0bf38..a67fd624 100644
--- a/lib/subargAliases.js
+++ b/lib/subargAliases.js
@@ -1,6 +1,6 @@
 'use strict'
 
-const clone = require('clone')
+const clone = require('lodash.clonedeep')
 
 const subArgAlias = {
   warmup: {
diff --git a/package.json b/package.json
index 748a8bf3..17e6eff9 100644
--- a/package.json
+++ b/package.json
@@ -51,7 +51,6 @@
     "chalk": "^4.1.0",
     "char-spinner": "^1.0.1",
     "cli-table3": "^0.6.0",
-    "clone": "^2.1.2",
     "color-support": "^1.1.1",
     "cross-argv": "^1.0.0",
     "form-data": "^4.0.0",
@@ -60,6 +59,7 @@
     "hdr-histogram-percentiles-obj": "^3.0.0",
     "http-parser-js": "^0.5.2",
     "hyperid": "^2.0.3",
+    "lodash.clonedeep": "^4.5.0",
     "manage-path": "^2.0.0",
     "on-net-listen": "^1.1.1",
     "pretty-bytes": "^5.4.1",
diff --git a/test/keystore.pkcs12 b/test/keystore.pkcs12
new file mode 100644
index 00000000..45b47887
Binary files /dev/null and b/test/keystore.pkcs12 differ
diff --git a/test/workers.test.js b/test/workers.test.js
index a18fd77f..8f0671b5 100644
--- a/test/workers.test.js
+++ b/test/workers.test.js
@@ -1,14 +1,16 @@
 'use strict'
 
 const path = require('path')
+const fs = require('fs')
 const test = require('tap').test
 const http = require('http')
 const initJob = require('../lib/init')
 const { hasWorkerSupport } = require('../lib/util')
 const helper = require('./helper')
-const server = helper.startServer()
+const httpsServer = helper.startHttpsServer()
 
 test('returns error when no worker support was found', (t) => {
+  const server = helper.startServer()
   initJob({
     url: 'http://localhost:' + server.address().port,
     connections: 3,
@@ -27,6 +29,7 @@ test('returns error when no worker support was found', (t) => {
 })
 
 test('init with workers', { skip: !hasWorkerSupport }, (t) => {
+  const server = helper.startServer()
   initJob({
     url: 'http://localhost:' + server.address().port,
     connections: 3,
@@ -159,3 +162,20 @@ test('setupClient works with workers', { skip: !hasWorkerSupport }, (t) => {
     t.end()
   })
 })
+
+test('tlsOptions using pfx work as intended in workers', { skip: !hasWorkerSupport }, (t) => {
+  initJob({
+    url: 'https://localhost:' + httpsServer.address().port,
+    connections: 1,
+    amount: 1,
+    workers: 2,
+    tlsOptions: {
+      pfx: fs.readFileSync(path.join(__dirname, '/keystore.pkcs12')),
+      passphrase: 'test'
+    }
+  }, function (err, result) {
+    t.error(err)
+    t.ok(result, 'requests are ok')
+    t.end()
+  })
+})