diff --git a/backend/app/routers/image_safety.py b/backend/app/routers/image_safety.py
index fb82d83..ac5a0c6 100644
--- a/backend/app/routers/image_safety.py
+++ b/backend/app/routers/image_safety.py
@@ -98,7 +98,7 @@ def check_with_gemini(image_bytes: bytes) -> ImageSafetyCheckResponse:
         client = genai.Client(api_key=settings.GEMINI_API_KEY)
 
         response = client.models.generate_content(
-            model="gemini-2.5-flash-preview-05-20",
+            model="gemini-3-flash-preview",
             contents=[
                 types.Content(
                     parts=[