diff --git a/go.mod b/go.mod
index 1a9b76c..fa1e901 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,5 @@
 module git.cyrilix.bzh/cyrilix/goupnp
 
-go 1.19
+go 1.21
 
-require golang.org/x/sync v0.1.0
+require golang.org/x/sync v0.5.0
diff --git a/go.sum b/go.sum
index 595d314..34031c4 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +1,2 @@
-golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
-golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.5.0 h1:60k92dhOjHxJkrqnwsfl8KuaHbn/5dl0lUPUklKo3qE=
+golang.org/x/sync v0.5.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
diff --git a/go.work b/go.work
index 9b7d1ff..e9af7a0 100644
--- a/go.work
+++ b/go.work
@@ -1,4 +1,6 @@
-go 1.18
+go 1.19
+
+toolchain go1.21.4
 
 use (
 	.
diff --git a/go.work.sum b/go.work.sum
new file mode 100644
index 0000000..1b4b56d
--- /dev/null
+++ b/go.work.sum
@@ -0,0 +1,6 @@
+golang.org/x/mod v0.6.0 h1:b9gGHsz9/HhJ3HF5DHQytPpuwocVTChQJK3AvoLRD5I=
+golang.org/x/mod v0.6.0/go.mod h1:4mET923SAdbXp2ki8ey+zGs1SLqsuM2Y0uvdZR/fUNI=
+golang.org/x/sys v0.1.0 h1:kunALQeHf1/185U1i0GOB/fy1IPRDDpuoOOqRReG57U=
+golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/tools v0.2.0 h1:G6AHpWxTMGY1KyEYoAQ5WTtIekUUvDNjan3ugu60JvE=
+golang.org/x/tools v0.2.0/go.mod h1:y4OqIKeOV/fWJetJ8bXPU1sEVniLMIyDAZWeHdV+NTA=
diff --git a/vendor/golang.org/x/sync/errgroup/errgroup.go b/vendor/golang.org/x/sync/errgroup/errgroup.go
index cbee7a4..b18efb7 100644
--- a/vendor/golang.org/x/sync/errgroup/errgroup.go
+++ b/vendor/golang.org/x/sync/errgroup/errgroup.go
@@ -20,7 +20,7 @@ type token struct{}
 // A zero Group is valid, has no limit on the number of active goroutines,
 // and does not cancel on error.
 type Group struct {
-	cancel func()
+	cancel func(error)
 
 	wg sync.WaitGroup
 
@@ -43,7 +43,7 @@ func (g *Group) done() {
 // returns a non-nil error or the first time Wait returns, whichever occurs
 // first.
 func WithContext(ctx context.Context) (*Group, context.Context) {
-	ctx, cancel := context.WithCancel(ctx)
+	ctx, cancel := withCancelCause(ctx)
 	return &Group{cancel: cancel}, ctx
 }
 
@@ -52,7 +52,7 @@ func WithContext(ctx context.Context) (*Group, context.Context) {
 func (g *Group) Wait() error {
 	g.wg.Wait()
 	if g.cancel != nil {
-		g.cancel()
+		g.cancel(g.err)
 	}
 	return g.err
 }
@@ -76,7 +76,7 @@ func (g *Group) Go(f func() error) {
 			g.errOnce.Do(func() {
 				g.err = err
 				if g.cancel != nil {
-					g.cancel()
+					g.cancel(g.err)
 				}
 			})
 		}
@@ -105,7 +105,7 @@ func (g *Group) TryGo(f func() error) bool {
 			g.errOnce.Do(func() {
 				g.err = err
 				if g.cancel != nil {
-					g.cancel()
+					g.cancel(g.err)
 				}
 			})
 		}
diff --git a/vendor/golang.org/x/sync/errgroup/go120.go b/vendor/golang.org/x/sync/errgroup/go120.go
new file mode 100644
index 0000000..f93c740
--- /dev/null
+++ b/vendor/golang.org/x/sync/errgroup/go120.go
@@ -0,0 +1,13 @@
+// Copyright 2023 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build go1.20
+
+package errgroup
+
+import "context"
+
+func withCancelCause(parent context.Context) (context.Context, func(error)) {
+	return context.WithCancelCause(parent)
+}
diff --git a/vendor/golang.org/x/sync/errgroup/pre_go120.go b/vendor/golang.org/x/sync/errgroup/pre_go120.go
new file mode 100644
index 0000000..88ce334
--- /dev/null
+++ b/vendor/golang.org/x/sync/errgroup/pre_go120.go
@@ -0,0 +1,14 @@
+// Copyright 2023 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build !go1.20
+
+package errgroup
+
+import "context"
+
+func withCancelCause(parent context.Context) (context.Context, func(error)) {
+	ctx, cancel := context.WithCancel(parent)
+	return ctx, func(error) { cancel() }
+}
diff --git a/vendor/modules.txt b/vendor/modules.txt
index d62e471..42125c4 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -1,3 +1,3 @@
-# golang.org/x/sync v0.1.0
-## explicit
+# golang.org/x/sync v0.5.0
+## explicit; go 1.18
 golang.org/x/sync/errgroup