diff --git a/backend/app/Services/GeminiService.php b/backend/app/Services/GeminiService.php
index e819625..381a93d 100644
--- a/backend/app/Services/GeminiService.php
+++ b/backend/app/Services/GeminiService.php
@@ -43,10 +43,10 @@ class GeminiService
      */
     public static function getElevenLabsVoiceId(?string $configuredVoiceId = null): string
     {
-        $voiceIdSource = !empty($configuredVoiceId) ? $configuredVoiceId : (getenv('ELEVENLABS_VOICE_ID') ?: 'ErXwobaYiN019PkySvjV');
+        $voiceIdSource = !empty($configuredVoiceId) ? $configuredVoiceId : (getenv('ELEVENLABS_VOICE_ID') ?: 'pNInz6obpgDQGcFmaJgB');
         $voiceIds = array_filter(array_map('trim', explode(',', $voiceIdSource)));
         if (empty($voiceIds)) {
-            return 'ErXwobaYiN019PkySvjV';
+            return 'pNInz6obpgDQGcFmaJgB';
         }
         return $voiceIds[array_rand($voiceIds)];
     }
@@ -420,7 +420,7 @@ class GeminiService
     ): ?array {
         // Use ElevenLabs if the API Key is provided
         if (!empty($elApiKey)) {
-            $voiceId = !empty($elVoiceId) ? $elVoiceId : 'ErXwobaYiN019PkySvjV'; // Default to Antoni
+            $voiceId = !empty($elVoiceId) ? $elVoiceId : 'pNInz6obpgDQGcFmaJgB'; // Default to Adam
             $audioData = self::generateAudioResponseWithElevenLabs($elApiKey, $userMessage, $voiceId);
             if ($audioData) {
                 return $audioData;