diff --git a/package.json b/package.json
index d11a8ec1..d2b4c4d6 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "displayName": "PHPUnit Test Explorer",
   "icon": "img/icon.png",
   "publisher": "recca0120",
-  "version": "3.7.7",
+  "version": "3.7.8",
   "private": true,
   "license": "MIT",
   "repository": {
diff --git a/src/Handler.ts b/src/Handler.ts
index d54f1c2f..6541765c 100644
--- a/src/Handler.ts
+++ b/src/Handler.ts
@@ -35,8 +35,7 @@ export class Handler {
         const xdebug = new Xdebug(this.configuration);
         builder.setXdebug(xdebug);
 
-        xdebug.setMode(request.profile?.kind);
-
+        await xdebug.setMode(request.profile?.kind);
         if (xdebug.mode === Mode.debug) {
             // TODO: perhaps wait for the debug session
             await debug.startDebugging(wsf, xdebug.name ?? await xdebug.getDebugConfiguration());
diff --git a/src/PHPUnit/CommandBuilder/Xdebug.ts b/src/PHPUnit/CommandBuilder/Xdebug.ts
index 307c044d..ef973023 100644
--- a/src/PHPUnit/CommandBuilder/Xdebug.ts
+++ b/src/PHPUnit/CommandBuilder/Xdebug.ts
@@ -1,5 +1,5 @@
 import * as net from 'net';
-import { mkdtempSync } from 'node:fs';
+import { mkdtemp } from 'node:fs/promises';
 import { tmpdir } from 'node:os';
 import { join } from 'node:path';
 import { IConfiguration } from '../Configuration';
@@ -54,7 +54,7 @@ export class Xdebug {
         return this;
     }
 
-    setMode(mode?: Mode | number) {
+    async setMode(mode?: Mode | number) {
         if (typeof mode !== 'number') {
             this.mode = mode;
 
@@ -64,21 +64,18 @@ export class Xdebug {
         // export enum TestRunProfileKind { Run = 1, Debug = 2, Coverage = 3 }
         if (mode === 2) {
             this.mode = Mode.debug;
+            this.port = this.configuration.get('xdebugPort', 0) as number || await getFreePort();
         }
 
         if (mode === 3) {
             this.mode = Mode.coverage;
-            this.setTemporaryDirectory(mkdtempSync(join(tmpdir(), 'phpunit-')));
+            this.setTemporaryDirectory(await mkdtemp(join(tmpdir(), 'phpunit')));
         }
 
         return this;
     }
 
     private async getPort() {
-        if (!this.port) {
-            this.port = this.configuration.get('xdebugPort', await getFreePort()) as number;
-        }
-
         return this.port;
     }