diff --git a/testing/scenarios/tls_test.go b/testing/scenarios/tls_test.go
index 3b1c39068..acdf31ff0 100644
--- a/testing/scenarios/tls_test.go
+++ b/testing/scenarios/tls_test.go
@@ -125,7 +125,7 @@ func TestSimpleTLSConnection(t *testing.T) {
 	common.Must(err)
 	defer CloseAllServers(servers)
 
-	if err := testTCPConn(clientPort, 1024, time.Second*2)(); err != nil {
+	if err := testTCPConn(clientPort, 1024, time.Second*20)(); err != nil {
 		t.Fatal(err)
 	}
 }
@@ -247,7 +247,7 @@ func TestAutoIssuingCertificate(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	for i := 0; i < 10; i++ {
-		if err := testTCPConn(clientPort, 1024, time.Second*2)(); err != nil {
+		if err := testTCPConn(clientPort, 1024, time.Second*20)(); err != nil {
 			t.Error(err)
 		}
 	}
@@ -350,7 +350,7 @@ func TestTLSOverKCP(t *testing.T) {
 	common.Must(err)
 	defer CloseAllServers(servers)
 
-	if err := testTCPConn(clientPort, 1024, time.Second*2)(); err != nil {
+	if err := testTCPConn(clientPort, 1024, time.Second*20)(); err != nil {
 		t.Error(err)
 	}
 }
@@ -689,7 +689,7 @@ func TestSimpleTLSConnectionPinned(t *testing.T) {
 	common.Must(err)
 	defer CloseAllServers(servers)
 
-	if err := testTCPConn(clientPort, 1024, time.Second*2)(); err != nil {
+	if err := testTCPConn(clientPort, 1024, time.Second*20)(); err != nil {
 		t.Fatal(err)
 	}
 }