diff --git a/src/shared/key-management/google-ai/checker.ts b/src/shared/key-management/google-ai/checker.ts
index ca810fc..01abd4a 100644
--- a/src/shared/key-management/google-ai/checker.ts
+++ b/src/shared/key-management/google-ai/checker.ts
@@ -11,7 +11,7 @@ const KEY_CHECK_PERIOD = 6 * 60 * 60 * 1000; // 3 hours
 const LIST_MODELS_URL =
   "https://generativelanguage.googleapis.com/v1beta/models";
 const GENERATE_CONTENT_URL =
-  "https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash:generateContent?key=%KEY%";
+  "https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash:generateContent?key=%KEY%";
 const PRO_MODEL_ID = "gemini-2.5-pro";
 const GENERATE_PRO_CONTENT_URL =
   `https://generativelanguage.googleapis.com/v1beta/models/${PRO_MODEL_ID}:generateContent?key=%KEY%`;