diff --git a/bar_test.go b/bar_test.go
index 27fd091..7f6b3f6 100644
--- a/bar_test.go
+++ b/bar_test.go
@@ -4,7 +4,7 @@
 	"bytes"
 	"context"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"strings"
 	"sync/atomic"
 	"testing"
@@ -16,7 +16,7 @@
 )
 
 func TestBarCompleted(t *testing.T) {
-	p := mpb.New(mpb.WithWidth(80), mpb.WithOutput(ioutil.Discard))
+	p := mpb.New(mpb.WithWidth(80), mpb.WithOutput(io.Discard))
 	total := 80
 	bar := p.AddBar(int64(total))
 
@@ -34,7 +34,7 @@
 }
 
 func TestBarAborted(t *testing.T) {
-	p := mpb.New(mpb.WithWidth(80), mpb.WithOutput(ioutil.Discard))
+	p := mpb.New(mpb.WithWidth(80), mpb.WithOutput(io.Discard))
 	total := 80
 	bar := p.AddBar(int64(total))
 
@@ -52,7 +52,7 @@
 }
 
 func TestBarEnableTriggerCompleteAndIncrementBefore(t *testing.T) {
-	p := mpb.New(mpb.WithWidth(80), mpb.WithOutput(ioutil.Discard))
+	p := mpb.New(mpb.WithWidth(80), mpb.WithOutput(io.Discard))
 	bar := p.AddBar(0) // never complete bar
 
 	for _, f := range []func(){
@@ -77,7 +77,7 @@
 }
 
 func TestBarEnableTriggerCompleteAndIncrementAfter(t *testing.T) {
-	p := mpb.New(mpb.WithWidth(80), mpb.WithOutput(ioutil.Discard))
+	p := mpb.New(mpb.WithWidth(80), mpb.WithOutput(io.Discard))
 	bar := p.AddBar(0) // never complete bar
 
 	for _, f := range []func(){
@@ -102,7 +102,7 @@
 }
 
 func TestBarID(t *testing.T) {
-	p := mpb.New(mpb.WithWidth(80), mpb.WithOutput(ioutil.Discard))
+	p := mpb.New(mpb.WithWidth(80), mpb.WithOutput(io.Discard))
 	total := 100
 	wantID := 11
 	bar := p.AddBar(int64(total), mpb.BarID(wantID))
@@ -204,7 +204,7 @@
 	p := mpb.New(
 		mpb.WithWidth(80),
 		mpb.WithDebugOutput(&buf),
-		mpb.WithOutput(ioutil.Discard),
+		mpb.WithOutput(io.Discard),
 	)
 
 	total := 100
@@ -241,7 +241,7 @@
 	p := mpb.New(
 		mpb.WithWidth(80),
 		mpb.WithDebugOutput(&buf),
-		mpb.WithOutput(ioutil.Discard),
+		mpb.WithOutput(io.Discard),
 	)
 
 	total := 100
@@ -293,7 +293,7 @@
 	refresh := make(chan interface{})
 	p := mpb.NewWithContext(ctx, mpb.WithWidth(100),
 		mpb.WithManualRefresh(refresh),
-		mpb.WithOutput(ioutil.Discard),
+		mpb.WithOutput(io.Discard),
 	)
 	_ = p.AddBar(0,
 		mpb.BarFillerTrim(),
diff --git a/container_option.go b/container_option.go
index bfaa328..38239d4 100644
--- a/container_option.go
+++ b/container_option.go
@@ -2,7 +2,6 @@
 
 import (
 	"io"
-	"io/ioutil"
 	"sync"
 	"time"
 )
@@ -74,7 +73,7 @@
 func WithOutput(w io.Writer) ContainerOption {
 	return func(s *pState) {
 		if w == nil {
-			s.output = ioutil.Discard
+			s.output = io.Discard
 			s.outputDiscarded = true
 			return
 		}
diff --git a/cwriter/cuuAndEd_construction_bench_test.go b/cwriter/cuuAndEd_construction_bench_test.go
index 2abbec3..996d5a8 100644
--- a/cwriter/cuuAndEd_construction_bench_test.go
+++ b/cwriter/cuuAndEd_construction_bench_test.go
@@ -3,13 +3,13 @@
 import (
 	"bytes"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"strconv"
 	"testing"
 )
 
 var (
-	out   = ioutil.Discard
+	out   = io.Discard
 	lines = 99
 )
 
diff --git a/example_test.go b/example_test.go
index ba8965e..a76a6ec 100644
--- a/example_test.go
+++ b/example_test.go
@@ -3,7 +3,6 @@
 import (
 	crand "crypto/rand"
 	"io"
-	"io/ioutil"
 	"math/rand"
 	"time"
 
@@ -78,7 +77,7 @@
 	defer proxyReader.Close()
 
 	// and copy from reader, ignoring errors
-	_, _ = io.Copy(ioutil.Discard, proxyReader)
+	_, _ = io.Copy(io.Discard, proxyReader)
 
 	p.Wait()
 }
diff --git a/progress_test.go b/progress_test.go
index 9cb4771..9f3227c 100644
--- a/progress_test.go
+++ b/progress_test.go
@@ -2,7 +2,7 @@
 
 import (
 	"context"
-	"io/ioutil"
+	"io"
 	"math/rand"
 	"testing"
 	"time"
@@ -21,7 +21,7 @@
 
 func TestBarCount(t *testing.T) {
 	shutdown := make(chan struct{})
-	p := mpb.New(mpb.WithShutdownNotifier(shutdown), mpb.WithOutput(ioutil.Discard))
+	p := mpb.New(mpb.WithShutdownNotifier(shutdown), mpb.WithOutput(io.Discard))
 
 	b := p.AddBar(0, mpb.BarRemoveOnComplete())
 
@@ -48,7 +48,7 @@
 
 func TestBarAbort(t *testing.T) {
 	shutdown := make(chan struct{})
-	p := mpb.New(mpb.WithShutdownNotifier(shutdown), mpb.WithOutput(ioutil.Discard))
+	p := mpb.New(mpb.WithShutdownNotifier(shutdown), mpb.WithOutput(io.Discard))
 	n := 2
 	bars := make([]*mpb.Bar, n)
 	for i := 0; i < n; i++ {
@@ -97,7 +97,7 @@
 func TestWithContext(t *testing.T) {
 	shutdown := make(chan struct{})
 	ctx, cancel := context.WithCancel(context.Background())
-	p := mpb.NewWithContext(ctx, mpb.WithShutdownNotifier(shutdown), mpb.WithOutput(ioutil.Discard))
+	p := mpb.NewWithContext(ctx, mpb.WithShutdownNotifier(shutdown), mpb.WithOutput(io.Discard))
 
 	done := make(chan struct{})
 	bar := p.AddBar(0) // never complete bar
@@ -139,7 +139,7 @@
 
 	total := 100
 	numBars := 6
-	p := mpb.New(mpb.WithOutput(ioutil.Discard))
+	p := mpb.New(mpb.WithOutput(io.Discard))
 	for i := 0; i < numBars; i++ {
 		bar := p.AddBar(int64(total),
 			mpb.BarOptional(mpb.BarRemoveOnComplete(), i == 0),
diff --git a/proxyreader.go b/proxyreader.go
index b0dd89d..51b63ea 100644
--- a/proxyreader.go
+++ b/proxyreader.go
@@ -2,7 +2,6 @@
 
 import (
 	"io"
-	"io/ioutil"
 	"time"
 )
 
@@ -76,5 +75,5 @@
 	if rc, ok := r.(io.ReadCloser); ok {
 		return rc
 	}
-	return ioutil.NopCloser(r)
+	return io.NopCloser(r)
 }
diff --git a/proxyreader_test.go b/proxyreader_test.go
index 4482f5a..0f7f058 100644
--- a/proxyreader_test.go
+++ b/proxyreader_test.go
@@ -3,7 +3,6 @@
 import (
 	"bytes"
 	"io"
-	"io/ioutil"
 	"strings"
 	"testing"
 
@@ -39,7 +38,7 @@
 }
 
 func TestProxyReader(t *testing.T) {
-	p := mpb.New(mpb.WithOutput(ioutil.Discard))
+	p := mpb.New(mpb.WithOutput(io.Discard))
 
 	tReader := &testReader{strings.NewReader(content), false}
 
@@ -63,7 +62,7 @@
 }
 
 func TestProxyWriterTo(t *testing.T) {
-	p := mpb.New(mpb.WithOutput(ioutil.Discard))
+	p := mpb.New(mpb.WithOutput(io.Discard))
 
 	var reader io.Reader = strings.NewReader(content)
 	tWriterTo := testWriterTo{&testReader{reader, false}, reader.(io.WriterTo)}