Update app.py

app.py

@@ -24,7 +24,7 @@ logger = logging.getLogger(__name__)
 class Config:
     GEMINI_API_KEY: str = os.getenv("GEMINI_API_KEY", "")
     SERPER_API_KEY: str = os.getenv("SERPER_API_KEY", "")
-    GEMINI_MODEL: str = "gemini-1.5-flash"
+    GEMINI_MODEL: str = "gemini-2.0-flash"
     MAX_RETRIES: int = 3
     TIMEOUT: int = 30