diff --git a/README.md b/README.md
index 2a8e224..1709c2c 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 Package pool
 ============
 
-![Project status](https://img.shields.io/badge/version-2.0.1-green.svg)
+![Project status](https://img.shields.io/badge/version-2.1.0-green.svg)
 [![Build Status](https://semaphoreci.com/api/v1/joeybloggs/pool/branches/v2/badge.svg)](https://semaphoreci.com/joeybloggs/pool)
 [![Coverage Status](https://coveralls.io/repos/go-playground/pool/badge.svg?branch=v2&service=github)](https://coveralls.io/github/go-playground/pool?branch=v2)
 [![Go Report Card](https://goreportcard.com/badge/gopkg.in/go-playground/pool.v2)](https://goreportcard.com/report/gopkg.in/go-playground/pool.v2)
diff --git a/batch.go b/batch.go
index afb3590..5f9573b 100644
--- a/batch.go
+++ b/batch.go
@@ -5,7 +5,7 @@ import "sync"
 // Batch contains all information for a batch run of WorkUnits
 type Batch struct {
 	pool    *Pool
-	m       *sync.Mutex
+	m       sync.Mutex
 	units   []*WorkUnit
 	results chan *WorkUnit
 	done    chan struct{}
@@ -22,7 +22,6 @@ type Batch struct {
 func (p *Pool) Batch() *Batch {
 	return &Batch{
 		pool:    p,
-		m:       new(sync.Mutex),
 		units:   make([]*WorkUnit, 0, 4), // capacity it to 4 so it doesn't grow and allocate too many times.
 		results: make(chan *WorkUnit),
 		done:    make(chan struct{}),
diff --git a/pool.go b/pool.go
index 156bd26..66bda08 100644
--- a/pool.go
+++ b/pool.go
@@ -76,7 +76,7 @@ type Pool struct {
 	work    chan *WorkUnit
 	cancel  chan struct{}
 	closed  bool
-	m       *sync.RWMutex
+	m       sync.RWMutex
 }
 
 // New returns a new pool instance.
@@ -88,7 +88,6 @@ func New(workers uint) *Pool {
 
 	p := &Pool{
 		workers: workers,
-		m:       new(sync.RWMutex),
 	}
 
 	p.initialize()