diff --git a/backend/app/main.py b/backend/app/main.py
index 33420d2..369a8d5 100644
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -3332,7 +3332,6 @@ NOTA:
     
     try:
         import openai
-        openai.api_key = settings.OPENAI_API_KEY
         
         # Prompt especializado para inspección vehicular
         system_prompt = """Eres un experto mecánico automotriz. Analiza la imagen y proporciona:
diff --git a/backend/requirements.txt b/backend/requirements.txt
index c1a227e..c25e44f 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -10,7 +10,7 @@ python-jose[cryptography]==3.3.0
 passlib==1.7.4
 bcrypt==4.0.1
 python-multipart==0.0.6
-openai==1.10.0
+openai==1.57.4
 anthropic==0.40.0
 google-generativeai==0.3.2
 Pillow==10.2.0