diff --git a/runnable-mail_test.go b/runnable-mail_test.go
index d7fb08ca321a70c552dbca9143591a4dfe0023aa..ea5c911f1fe512f82ae3616660699155edebd682 100644
--- a/runnable-mail_test.go
+++ b/runnable-mail_test.go
@@ -107,7 +107,7 @@ func TestMailRunner(t *testing.T) {
 		time.Sleep(1 * time.Second)
 	})
 
-	host := "127.0.0.1"
+	host := "0.0.0.0"
 
 	listener, err := net.Listen("tcp", host+":0")
 	if err != nil {
diff --git a/runnable-sftp_test.go b/runnable-sftp_test.go
index 0f0c999950097b65a76f39bd6907bb7c2a5f7fee..f825b340a4783aa9cf37589c73ed663fd17af0ff 100644
--- a/runnable-sftp_test.go
+++ b/runnable-sftp_test.go
@@ -108,7 +108,7 @@ func TestSFTPCRunnerLocalToRemote(t *testing.T) {
 		time.Sleep(1 * time.Second)
 	})
 
-	host := "127.0.0.1"
+	host := "0.0.0.0"
 
 	listener, err := net.Listen("tcp", host+":0")
 	if err != nil {