diff --git a/bar_test.go b/bar_test.go
index 33f7e95..b442195 100644
--- a/bar_test.go
+++ b/bar_test.go
@@ -10,8 +10,8 @@
 	"time"
 	"unicode/utf8"
 
-	. "github.com/vbauerster/mpb/v4"
-	"github.com/vbauerster/mpb/v4/decor"
+	. "github.com/vbauerster/mpb/v5"
+	"github.com/vbauerster/mpb/v5/decor"
 )
 
 func TestBarCompleted(t *testing.T) {
diff --git a/barbench_test.go b/barbench_test.go
index ae84322..53a8141 100644
--- a/barbench_test.go
+++ b/barbench_test.go
@@ -4,7 +4,7 @@
 	"io/ioutil"
 	"testing"
 
-	"github.com/vbauerster/mpb/v4/decor"
+	"github.com/vbauerster/mpb/v5/decor"
 )
 
 func BenchmarkIncrSingleBar(b *testing.B) {
diff --git a/decorators_test.go b/decorators_test.go
index fd02caa..4bc475a 100644
--- a/decorators_test.go
+++ b/decorators_test.go
@@ -4,8 +4,8 @@
 	"sync"
 	"testing"
 
-	. "github.com/vbauerster/mpb/v4"
-	"github.com/vbauerster/mpb/v4/decor"
+	. "github.com/vbauerster/mpb/v5"
+	"github.com/vbauerster/mpb/v5/decor"
 )
 
 func TestNameDecorator(t *testing.T) {
diff --git a/example_test.go b/example_test.go
index a7dd099..ca524cf 100644
--- a/example_test.go
+++ b/example_test.go
@@ -7,8 +7,8 @@
 	"math/rand"
 	"time"
 
-	"github.com/vbauerster/mpb/v4"
-	"github.com/vbauerster/mpb/v4/decor"
+	"github.com/vbauerster/mpb/v5"
+	"github.com/vbauerster/mpb/v5/decor"
 )
 
 func Example() {
@@ -35,10 +35,13 @@
 	// simulating some work
 	max := 100 * time.Millisecond
 	for i := 0; i < total; i++ {
+		// start variable is solely for EWMA calculation
+		// EWMA's unit of measure is an iteration's taken time
 		start := time.Now()
 		time.Sleep(time.Duration(rand.Intn(10)+1) * max / 10)
-		// since ewma decorator is used, we need to pass time.Since(start)
-		bar.Increment(time.Since(start))
+		bar.Increment()
+		// we need to call DecoratorEwmaUpdate to fulfill ewma decorator's contract
+		bar.DecoratorEwmaUpdate(time.Since(start))
 	}
 	// wait for our bar to complete and flush
 	p.Wait()
diff --git a/progress_test.go b/progress_test.go
index 141be24..3390d2c 100644
--- a/progress_test.go
+++ b/progress_test.go
@@ -9,7 +9,7 @@
 	"testing"
 	"time"
 
-	"github.com/vbauerster/mpb/v4"
+	"github.com/vbauerster/mpb/v5"
 )
 
 func init() {