diff --git a/.semver.yaml b/.semver.yaml
index 8f3900a..f551ac4 100644
--- a/.semver.yaml
+++ b/.semver.yaml
@@ -1,4 +1,4 @@
 alpha: 0
 beta: 0
 rc: 0
-release: v1.1.0
+release: v1.1.1
diff --git a/cmd/affected.go b/cmd/affected.go
index 8c5a1ac..8a65ac8 100644
--- a/cmd/affected.go
+++ b/cmd/affected.go
@@ -3,9 +3,11 @@ package cmd
 import (
 	"errors"
 	"fmt"
+	"os"
 	"slices"
 	"strings"
 
+	"github.com/kperreau/goac/pkg/printer"
 	"github.com/kperreau/goac/pkg/project"
 	"github.com/spf13/cobra"
 )
@@ -39,7 +41,8 @@ var affectedCmd = &cobra.Command{
 				return err
 			}
 			if err := projectsList.Affected(); err != nil {
-				return err
+				printer.Errorf("%s\n", err)
+				os.Exit(1)
 			}
 			return nil
 		}
diff --git a/cmd/version.go b/cmd/version.go
index 65f5a22..53c3bd2 100644
--- a/cmd/version.go
+++ b/cmd/version.go
@@ -3,10 +3,10 @@ package cmd
 import (
 	"errors"
 	"fmt"
-	"gopkg.in/yaml.v3"
 	"os"
 
 	"github.com/spf13/cobra"
+	"gopkg.in/yaml.v3"
 )
 
 // versionCmd represents the project command
diff --git a/go.mod b/go.mod
index a6fb33a..b157d77 100644
--- a/go.mod
+++ b/go.mod
@@ -4,10 +4,11 @@ go 1.22
 
 require (
 	github.com/codeskyblue/dockerignore v0.0.0-20151214070507-de82dee623d9
-	github.com/fatih/color v1.16.0
-	github.com/spf13/cobra v1.8.0
+	github.com/fatih/color v1.17.0
+	github.com/spf13/cobra v1.8.1
 	github.com/stretchr/testify v1.9.0
-	golang.org/x/mod v0.17.0
+	golang.org/x/mod v0.18.0
+	golang.org/x/sync v0.7.0
 	gopkg.in/yaml.v3 v3.0.1
 )
 
@@ -19,5 +20,5 @@ require (
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/smartystreets/goconvey v1.8.1 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
-	golang.org/x/sys v0.19.0 // indirect
+	golang.org/x/sys v0.21.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 4c44a07..9927c66 100644
--- a/go.sum
+++ b/go.sum
@@ -1,10 +1,10 @@
 github.com/codeskyblue/dockerignore v0.0.0-20151214070507-de82dee623d9 h1:c9axcChJwkLuSl9AvwTHi8jiBa6+VX4gGgERhABgv2E=
 github.com/codeskyblue/dockerignore v0.0.0-20151214070507-de82dee623d9/go.mod h1:XNZkUhPf+qgRnhY/ecS3B73ODJ2NXCzDMJHXM069IMg=
-github.com/cpuguy83/go-md2man/v2 v2.0.3/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/fatih/color v1.16.0 h1:zmkK9Ngbjj+K0yRhTVONQh1p/HknKYSlNT+vZCzyokM=
-github.com/fatih/color v1.16.0/go.mod h1:fL2Sau1YI5c0pdGEVCbKQbLXB6edEj1ZgiY4NijnWvE=
+github.com/fatih/color v1.17.0 h1:GlRw1BRJxkpqUCBKzKOw098ed57fEsKeNjpTe3cSjK4=
+github.com/fatih/color v1.17.0/go.mod h1:YZ7TlrGPkiz6ku9fK3TLD/pl3CpsiFyu8N92HLgmosI=
 github.com/gopherjs/gopherjs v1.17.2 h1:fQnZVsXk8uxXIStYb0N4bGk7jeyTalG/wsZjQ25dO0g=
 github.com/gopherjs/gopherjs v1.17.2/go.mod h1:pRRIvn/QzFLrKfvEz3qUuEhtE/zLCWfreZ6J5gM2i+k=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
@@ -23,18 +23,20 @@ github.com/smarty/assertions v1.15.0 h1:cR//PqUBUiQRakZWqBiFFQ9wb8emQGDb0HeGdqGB
 github.com/smarty/assertions v1.15.0/go.mod h1:yABtdzeQs6l1brC900WlRNwj6ZR55d7B+E8C6HtKdec=
 github.com/smartystreets/goconvey v1.8.1 h1:qGjIddxOk4grTu9JPOU31tVfq3cNdBlNa5sSznIX1xY=
 github.com/smartystreets/goconvey v1.8.1/go.mod h1:+/u4qLyY6x1jReYOp7GOM2FSt8aP9CzCZL03bI28W60=
-github.com/spf13/cobra v1.8.0 h1:7aJaZx1B85qltLMc546zn58BxxfZdR/W22ej9CFoEf0=
-github.com/spf13/cobra v1.8.0/go.mod h1:WXLWApfZ71AjXPya3WOlMsY9yMs7YeiHhFVlvLyhcho=
+github.com/spf13/cobra v1.8.1 h1:e5/vxKd/rZsfSJMUX1agtjeTDf+qv1/JdBF8gg5k9ZM=
+github.com/spf13/cobra v1.8.1/go.mod h1:wHxEcudfqmLYa8iTfL+OuZPbBZkmvliBWKIezN3kD9Y=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
 github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-golang.org/x/mod v0.17.0 h1:zY54UmvipHiNd+pm+m0x9KhZ9hl1/7QNMyxXbc6ICqA=
-golang.org/x/mod v0.17.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
+golang.org/x/mod v0.18.0 h1:5+9lSbEzPSdWkH32vYPBwEpX8KwDbM52Ud9xBUvNlb0=
+golang.org/x/mod v0.18.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
+golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M=
+golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.19.0 h1:q5f1RH2jigJ1MoAWp2KTp3gm5zAGFUTarQZ5U386+4o=
-golang.org/x/sys v0.19.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.21.0 h1:rF+pYz3DAGSQAxAu1CbC7catZg4ebC4UIeIhKxBZvws=
+golang.org/x/sys v0.21.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
diff --git a/pkg/project/affected.go b/pkg/project/affected.go
index 433ddb3..4e04a17 100644
--- a/pkg/project/affected.go
+++ b/pkg/project/affected.go
@@ -1,12 +1,13 @@
 package project
 
 import (
+	"fmt"
 	"path"
-	"sync"
 
 	"github.com/fatih/color"
 	"github.com/kperreau/goac/pkg/printer"
 	"github.com/kperreau/goac/pkg/utils"
+	"golang.org/x/sync/errgroup"
 )
 
 type Target string
@@ -19,39 +20,25 @@ const (
 
 func (t Target) String() string { return string(t) }
 
-type processAffectedOptions struct {
-	wg  *sync.WaitGroup
-	sem chan bool
-}
-
 func (l *List) Affected() error {
 	l.printAffected()
 
-	// init process options
-	sem := make(chan bool, l.Options.MaxConcurrency)
-	wg := sync.WaitGroup{}
-	pOpts := &processAffectedOptions{
-		wg:  &wg,
-		sem: sem,
-	}
-
+	eg := errgroup.Group{}
+	eg.SetLimit(l.Options.MaxConcurrency)
 	for _, p := range l.Projects {
-		sem <- true // acquire
-		wg.Add(1)
-		go processAffected(p, pOpts)
+		eg.Go(func() error {
+			return processAffected(p)
+		})
 	}
 
-	wg.Wait()
+	if err := eg.Wait(); err != nil {
+		return err
+	}
 
 	return nil
 }
 
-func processAffected(p *Project, opts *processAffectedOptions) {
-	defer opts.wg.Done()
-	defer func() {
-		<-opts.sem // release
-	}()
-
+func processAffected(p *Project) error {
 	isAffected := p.isAffected()
 
 	if isAffected && p.CMDOptions.DryRun {
@@ -59,18 +46,18 @@ func processAffected(p *Project, opts *processAffectedOptions) {
 	}
 
 	if p.CMDOptions.DryRun || !isAffected {
-		return
+		return nil
 	}
 
 	if err := p.build(); err != nil {
-		printer.Errorf("error building: %s\n", err.Error())
-		return
+		return fmt.Errorf("error building: %s", err.Error())
 	}
 
 	if err := p.writeCache(); err != nil {
-		printer.Errorf("%v\n", err)
-		return
+		return err
 	}
+
+	return nil
 }
 
 func (l *List) countAffected() (n int) {
diff --git a/pkg/project/affected_test.go b/pkg/project/affected_test.go
index d139a96..1e9a1fc 100644
--- a/pkg/project/affected_test.go
+++ b/pkg/project/affected_test.go
@@ -6,7 +6,6 @@ import (
 	"io"
 	"log"
 	"os"
-	"sync"
 	"testing"
 
 	"github.com/fatih/color"
@@ -463,25 +462,14 @@ func TestProcessAffected_BuildAffectedProject(t *testing.T) {
 		},
 	}
 
-	// Create a processAffectedOptions with a wait group and semaphore
-	opts := &processAffectedOptions{
-		wg:  &sync.WaitGroup{},
-		sem: make(chan bool, 1),
-	}
-
-	// Add a wait group counter
-	opts.wg.Add(1)
-
-	// Acquire the semaphore
-	opts.sem <- true
-
 	// Redirect stdout to a buffer
 	old := os.Stdout
 	r, w, _ := os.Pipe()
 	os.Stdout = w
 
 	// Call the processAffected function
-	processAffected(p, opts)
+	err := processAffected(p)
+	assert.NoError(t, err)
 
 	// Restore stdout
 	if err := w.Close(); err != nil {