diff --git a/backend-python/routes/completion.py b/backend-python/routes/completion.py
index af6f47c..135aa94 100644
--- a/backend-python/routes/completion.py
+++ b/backend-python/routes/completion.py
@@ -325,7 +325,7 @@ async def completions(body: CompletionBody, request: Request):
 
 
 class EmbeddingsBody(BaseModel):
-    input: str | List[str] | List[List[int]]
+    input: str or List[str] or List[List[int]]
     model: str = "rwkv"
     encoding_format: str = None
     fast_mode: bool = False