diff --git a/client_read_test.go b/client_read_test.go
index 82882a91..ad7d4483 100644
--- a/client_read_test.go
+++ b/client_read_test.go
@@ -2677,7 +2677,6 @@ func TestClientReadDifferentSource(t *testing.T) {
 		require.NoError(t, err)
 
 		// server -> client (RTP)
-		time.Sleep(1 * time.Second)
 		l1.WriteTo(testRTPPacketMarshaled, &net.UDPAddr{
 			IP:   net.ParseIP("127.0.0.1"),
 			Port: th.ClientPorts[0],
diff --git a/server_publish_test.go b/server_publish_test.go
index f079b763..9f83cf79 100644
--- a/server_publish_test.go
+++ b/server_publish_test.go
@@ -769,15 +769,11 @@ func TestServerPublish(t *testing.T) {
 
 			// client -> server
 			if transport == "udp" {
-				time.Sleep(1 * time.Second)
-
 				l1.WriteTo(testRTPPacketMarshaled, &net.UDPAddr{
 					IP:   net.ParseIP("127.0.0.1"),
 					Port: th.ServerPorts[0],
 				})
 
-				time.Sleep(500 * time.Millisecond)
-
 				l2.WriteTo(testRTCPPacketMarshaled, &net.UDPAddr{
 					IP:   net.ParseIP("127.0.0.1"),
 					Port: th.ServerPorts[1],