diff --git a/client_read_test.go b/client_read_test.go
index b63c872f..96678783 100644
--- a/client_read_test.go
+++ b/client_read_test.go
@@ -276,7 +276,7 @@ func TestClientRead(t *testing.T) {
 					th.Destination = &v2
 					th.Ports = &[2]int{25000, 25001}
 
-					l1, err = net.ListenPacket("udp4", "224.0.0.0:25000")
+					l1, err = net.ListenPacket("udp", "224.0.0.0:25000")
 					require.NoError(t, err)
 					defer l1.Close()
 
@@ -290,7 +290,7 @@ func TestClientRead(t *testing.T) {
 						require.NoError(t, err)
 					}
 
-					l2, err = net.ListenPacket("udp4", "224.0.0.0:25001")
+					l2, err = net.ListenPacket("udp", "224.0.0.0:25001")
 					require.NoError(t, err)
 					defer l2.Close()
 
diff --git a/clientconnudpl.go b/clientconnudpl.go
index 78f646bb..57083af6 100644
--- a/clientconnudpl.go
+++ b/clientconnudpl.go
@@ -63,7 +63,7 @@ func newClientConnUDPListener(cc *ClientConn, multicast bool, address string) (*
 			return nil, err
 		}
 
-		tmp, err := cc.c.ListenPacket("udp4", "224.0.0.0:"+port)
+		tmp, err := cc.c.ListenPacket("udp", "224.0.0.0:"+port)
 		if err != nil {
 			return nil, err
 		}
diff --git a/server_read_test.go b/server_read_test.go
index 4885def9..e333bc7c 100644
--- a/server_read_test.go
+++ b/server_read_test.go
@@ -441,7 +441,7 @@ func TestServerRead(t *testing.T) {
 				defer l2.Close()
 
 			case "multicast":
-				l1, err = net.ListenPacket("udp4", "224.0.0.0:"+strconv.FormatInt(int64(th.Ports[0]), 10))
+				l1, err = net.ListenPacket("udp", "224.0.0.0:"+strconv.FormatInt(int64(th.Ports[0]), 10))
 				require.NoError(t, err)
 				defer l1.Close()
 
@@ -455,7 +455,7 @@ func TestServerRead(t *testing.T) {
 					require.NoError(t, err)
 				}
 
-				l2, err = net.ListenPacket("udp4", "224.0.0.0:"+strconv.FormatInt(int64(th.Ports[1]), 10))
+				l2, err = net.ListenPacket("udp", "224.0.0.0:"+strconv.FormatInt(int64(th.Ports[1]), 10))
 				require.NoError(t, err)
 				defer l2.Close()
 
diff --git a/serverudpl.go b/serverudpl.go
index 82e2815d..0e6adf3b 100644
--- a/serverudpl.go
+++ b/serverudpl.go
@@ -96,7 +96,7 @@ func newServerUDPListener(
 			return nil, err
 		}
 
-		tmp, err := s.ListenPacket("udp4", "224.0.0.0:"+port)
+		tmp, err := s.ListenPacket("udp", "224.0.0.0:"+port)
 		if err != nil {
 			return nil, err
 		}