diff --git a/input_http_test.go b/input_http_test.go
index 6d1d64c..733e300 100644
--- a/input_http_test.go
+++ b/input_http_test.go
@@ -15,7 +15,7 @@ func TestHTTPInput(t *testing.T) {
 	wg := new(sync.WaitGroup)
 	quit := make(chan int)
 
-	input := NewHTTPInput(":0")
+	input := NewHTTPInput("127.0.0.1:0")
 	output := NewTestOutput(func(data []byte) {
 		wg.Done()
 	})
@@ -48,7 +48,7 @@ func TestInputHTTPLargePayload(t *testing.T) {
 		log.Fatal("dd error:", err)
 	}
 
-	input := NewHTTPInput(":0")
+	input := NewHTTPInput("127.0.0.1:0")
 	output := NewTestOutput(func(data []byte) {
 		if len(proto.Body(payloadBody(data))) != 4000000 {
 			t.Error("Should receive full file")
diff --git a/input_tcp_test.go b/input_tcp_test.go
index 9d88682..21f585e 100644
--- a/input_tcp_test.go
+++ b/input_tcp_test.go
@@ -51,7 +51,7 @@ func BenchmarkTCPInput(b *testing.B) {
 	wg := new(sync.WaitGroup)
 	quit := make(chan int)
 
-	input := NewTCPInput(":0")
+	input := NewTCPInput("127.0.0.1:0")
 	output := NewTestOutput(func(data []byte) {
 		wg.Done()
 	})
diff --git a/output_tcp_test.go b/output_tcp_test.go
index b295d7a..a7efd38 100644
--- a/output_tcp_test.go
+++ b/output_tcp_test.go
@@ -35,7 +35,7 @@ func TestTCPOutput(t *testing.T) {
 }
 
 func startTCP(cb func([]byte)) net.Listener {
-	listener, err := net.Listen("tcp", ":0")
+	listener, err := net.Listen("tcp", "127.0.0.1:0")
 
 	if err != nil {
 		log.Fatal("Can't start:", err)