diff --git a/ext/standard/tests/streams/bug51056.phpt b/ext/standard/tests/streams/bug51056.phpt
index e011405298c..ac5909da7a5 100644
--- a/ext/standard/tests/streams/bug51056.phpt
+++ b/ext/standard/tests/streams/bug51056.phpt
@@ -4,8 +4,8 @@ Bug #51056 (fread() on blocking stream will block even if data is available)
 <?php
 
 $serverCode = <<<'CODE'
-$server = stream_socket_server('tcp://127.0.0.1:64327');
-phpt_notify();
+$server = stream_socket_server('tcp://127.0.0.1:0');
+phpt_notify_server_start($server);
 
 $conn = stream_socket_accept($server);
 
@@ -21,9 +21,7 @@ CODE;
 
 $clientCode = <<<'CODE'
 
-phpt_wait();
-
-$fp = fsockopen("tcp://127.0.0.1:64327");
+$fp = fsockopen("tcp://{{ ADDR }}");
 
 while (!feof($fp)) {
     $data = fread($fp, 256);
diff --git a/ext/standard/tests/streams/gh11418.phpt b/ext/standard/tests/streams/gh11418.phpt
index cf442ad396a..384755b99cc 100644
--- a/ext/standard/tests/streams/gh11418.phpt
+++ b/ext/standard/tests/streams/gh11418.phpt
@@ -4,8 +4,8 @@ GH-11418: fgets on a redis socket connection fails on PHP 8.3
 <?php
 
 $serverCode = <<<'CODE'
-$server = stream_socket_server('tcp://127.0.0.1:64325');
-phpt_notify();
+$server = stream_socket_server('tcp://127.0.0.1:0');
+phpt_notify_server_start($server);
 
 $conn = stream_socket_accept($server);
 
@@ -19,9 +19,7 @@ CODE;
 
 $clientCode = <<<'CODE'
 
-phpt_wait();
-
-$fp = fsockopen("tcp://127.0.0.1:64325");
+$fp = fsockopen("tcp://{{ ADDR }}");
 
 echo fread($fp, 3);
 echo fgets($fp);