diff --git a/app/constant.ts b/app/constant.ts
index d9989bb3e..b312e15b2 100644
--- a/app/constant.ts
+++ b/app/constant.ts
@@ -124,7 +124,7 @@ export const GEMINI_SUMMARIZE_MODEL = "gemini-pro";
 
 export const KnowledgeCutOffDate: Record<string, string> = {
   default: "2021-09",
-  "gpt-4o": "2023-12",
+  "gpt-4o": "2023-10",
   "gpt-4-turbo": "2023-12",
   "gpt-4-turbo-2024-04-09": "2023-12",
   "gpt-4-turbo-preview": "2023-12",