diff --git a/agent.go b/agent.go
index 90b143c..9727aa1 100644
--- a/agent.go
+++ b/agent.go
@@ -26,7 +26,7 @@ import (
 	"github.com/pion/transport/v4/packetio"
 	"github.com/pion/transport/v4/stdnet"
 	"github.com/pion/transport/v4/vnet"
-	"github.com/pion/turn/v4"
+	"github.com/pion/turn/v5"
 	"golang.org/x/net/proxy"
 )
 
diff --git a/candidate_relay_test.go b/candidate_relay_test.go
index a8ab182..471589f 100644
--- a/candidate_relay_test.go
+++ b/candidate_relay_test.go
@@ -13,12 +13,12 @@ import (
 
 	"github.com/pion/stun/v3"
 	"github.com/pion/transport/v4/test"
-	"github.com/pion/turn/v4"
+	"github.com/pion/turn/v5"
 	"github.com/stretchr/testify/require"
 )
 
-func optimisticAuthHandler(string, string, net.Addr) (key []byte, ok bool) {
-	return turn.GenerateAuthKey("username", "pion.ly", "password"), true
+func optimisticAuthHandler(ra *turn.RequestAttributes) (userID string, key []byte, ok bool) {
+	return ra.Username, turn.GenerateAuthKey("username", "pion.ly", "password"), true
 }
 
 func TestRelayOnlyConnection(t *testing.T) {
diff --git a/candidate_server_reflexive_test.go b/candidate_server_reflexive_test.go
index 5a39c32..3b9cc56 100644
--- a/candidate_server_reflexive_test.go
+++ b/candidate_server_reflexive_test.go
@@ -13,7 +13,7 @@ import (
 
 	"github.com/pion/stun/v3"
 	"github.com/pion/transport/v4/test"
-	"github.com/pion/turn/v4"
+	"github.com/pion/turn/v5"
 	"github.com/stretchr/testify/require"
 )
 
diff --git a/connectivity_vnet_test.go b/connectivity_vnet_test.go
index 0a1704d..e8f73d5 100644
--- a/connectivity_vnet_test.go
+++ b/connectivity_vnet_test.go
@@ -17,7 +17,7 @@ import (
 	"github.com/pion/stun/v3"
 	"github.com/pion/transport/v4/test"
 	"github.com/pion/transport/v4/vnet"
-	"github.com/pion/turn/v4"
+	"github.com/pion/turn/v5"
 	"github.com/stretchr/testify/require"
 )
 
@@ -172,12 +172,12 @@ func addVNetSTUN(wanNet *vnet.Net, loggerFactory logging.LoggerFactory) (*turn.S
 		return nil, err
 	}
 	server, err := turn.NewServer(turn.ServerConfig{
-		AuthHandler: func(username, realm string, _ net.Addr) (key []byte, ok bool) {
-			if pw, ok := credMap[username]; ok {
-				return turn.GenerateAuthKey(username, realm, pw), true
+		AuthHandler: func(ra *turn.RequestAttributes) (userID string, key []byte, ok bool) {
+			if pw, found := credMap[ra.Username]; found {
+				return ra.Username, turn.GenerateAuthKey(ra.Username, ra.Realm, pw), true
 			}
 
-			return nil, false
+			return "", nil, false
 		},
 		PacketConnConfigs: []turn.PacketConnConfig{
 			{
diff --git a/gather.go b/gather.go
index b45eb49..8f85593 100644
--- a/gather.go
+++ b/gather.go
@@ -20,7 +20,7 @@ import (
 	"github.com/pion/logging"
 	"github.com/pion/stun/v3"
 	"github.com/pion/transport/v4/stdnet"
-	"github.com/pion/turn/v4"
+	"github.com/pion/turn/v5"
 )
 
 type turnClient interface {
diff --git a/gather_test.go b/gather_test.go
index 5c44bdb..99e0333 100644
--- a/gather_test.go
+++ b/gather_test.go
@@ -32,7 +32,7 @@ import (
 	transport "github.com/pion/transport/v4"
 	"github.com/pion/transport/v4/test"
 	"github.com/pion/transport/v4/vnet"
-	"github.com/pion/turn/v4"
+	"github.com/pion/turn/v5"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 	"golang.org/x/net/proxy"
diff --git a/gather_vnet_test.go b/gather_vnet_test.go
index bec3363..66f4d39 100644
--- a/gather_vnet_test.go
+++ b/gather_vnet_test.go
@@ -16,7 +16,7 @@ import (
 	"github.com/pion/stun/v3"
 	"github.com/pion/transport/v4/test"
 	"github.com/pion/transport/v4/vnet"
-	"github.com/pion/turn/v4"
+	"github.com/pion/turn/v5"
 	"github.com/stretchr/testify/require"
 )
 
@@ -452,12 +452,12 @@ func TestGatherRelayWithVNet(t *testing.T) {
 				RelayAddressGenerator: relayGenerator,
 			},
 		},
-		AuthHandler: func(username, realm string, srcAddr net.Addr) ([]byte, bool) {
-			if username != turnUser {
-				return nil, false
+		AuthHandler: func(ra *turn.RequestAttributes) (userID string, key []byte, ok bool) {
+			if ra.Username != turnUser {
+				return "", nil, false
 			}
 
-			return turn.GenerateAuthKey(username, realm, turnPass), true
+			return ra.Username, turn.GenerateAuthKey(ra.Username, ra.Realm, turnPass), true
 		},
 	})
 	require.NoError(t, err)
diff --git a/go.mod b/go.mod
index 04ad36b..dd790d3 100644
--- a/go.mod
+++ b/go.mod
@@ -10,7 +10,7 @@ require (
 	github.com/pion/randutil v0.1.0
 	github.com/pion/stun/v3 v3.1.2
 	github.com/pion/transport/v4 v4.0.1
-	github.com/pion/turn/v4 v4.1.4
+	github.com/pion/turn/v5 v5.0.3
 	github.com/stretchr/testify v1.11.1
 	golang.org/x/net v0.47.0
 )
@@ -21,8 +21,8 @@ require (
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/wlynxg/anet v0.0.5 // indirect
 	golang.org/x/crypto v0.45.0 // indirect
-	golang.org/x/sys v0.38.0 // indirect
-	golang.org/x/time v0.10.0 // indirect
+	golang.org/x/sys v0.41.0 // indirect
+	golang.org/x/time v0.14.0 // indirect
 	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
diff --git a/go.sum b/go.sum
index 648c6ac..9d8bc92 100644
--- a/go.sum
+++ b/go.sum
@@ -21,8 +21,8 @@ github.com/pion/transport/v3 v3.1.1 h1:Tr684+fnnKlhPceU+ICdrw6KKkTms+5qHMgw6bIkY
 github.com/pion/transport/v3 v3.1.1/go.mod h1:+c2eewC5WJQHiAA46fkMMzoYZSuGzA/7E2FPrOYHctQ=
 github.com/pion/transport/v4 v4.0.1 h1:sdROELU6BZ63Ab7FrOLn13M6YdJLY20wldXW2Cu2k8o=
 github.com/pion/transport/v4 v4.0.1/go.mod h1:nEuEA4AD5lPdcIegQDpVLgNoDGreqM/YqmEx3ovP4jM=
-github.com/pion/turn/v4 v4.1.4 h1:EU11yMXKIsK43FhcUnjLlrhE4nboHZq+TXBIi3QpcxQ=
-github.com/pion/turn/v4 v4.1.4/go.mod h1:ES1DXVFKnOhuDkqn9hn5VJlSWmZPaRJLyBXoOeO/BmQ=
+github.com/pion/turn/v5 v5.0.3 h1:I+Nw0fQgdPWF1SXDj0egWDhCkcff7gWiigdQpOK52Ak=
+github.com/pion/turn/v5 v5.0.3/go.mod h1:fs4SogUh/aRGQzonc4Lx3Jp4EU3j3t0PfNDEd9KcD/w=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
@@ -33,10 +33,10 @@ golang.org/x/crypto v0.45.0 h1:jMBrvKuj23MTlT0bQEOBcAE0mjg8mK9RXFhRH6nyF3Q=
 golang.org/x/crypto v0.45.0/go.mod h1:XTGrrkGJve7CYK7J8PEww4aY7gM3qMCElcJQ8n8JdX4=
 golang.org/x/net v0.47.0 h1:Mx+4dIFzqraBXUugkia1OOvlD6LemFo1ALMHjrXDOhY=
 golang.org/x/net v0.47.0/go.mod h1:/jNxtkgq5yWUGYkaZGqo27cfGZ1c5Nen03aYrrKpVRU=
-golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc=
-golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
-golang.org/x/time v0.10.0 h1:3usCWA8tQn0L8+hFJQNgzpWbd89begxN66o1Ojdn5L4=
-golang.org/x/time v0.10.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
+golang.org/x/sys v0.41.0 h1:Ivj+2Cp/ylzLiEU89QhWblYnOE9zerudt9Ftecq2C6k=
+golang.org/x/sys v0.41.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/time v0.14.0 h1:MRx4UaLrDotUKUdCIqzPC48t1Y9hANFKIRpNx+Te8PI=
+golang.org/x/time v0.14.0/go.mod h1:eL/Oa2bBBK0TkX57Fyni+NgnyQQN4LitPmob2Hjnqw4=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
diff --git a/transport_filtering_matrix_test.go b/transport_filtering_matrix_test.go
index 18d3b17..39d7fe4 100644
--- a/transport_filtering_matrix_test.go
+++ b/transport_filtering_matrix_test.go
@@ -18,7 +18,7 @@ import (
 	"github.com/pion/stun/v3"
 	transport "github.com/pion/transport/v4"
 	"github.com/pion/transport/v4/test"
-	"github.com/pion/turn/v4"
+	"github.com/pion/turn/v5"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 	"golang.org/x/net/proxy"