diff --git a/app/main.py b/app/main.py
index 761c096..27aeee5 100644
--- a/app/main.py
+++ b/app/main.py
@@ -182,7 +182,7 @@ logger.info("Using SAFE_MIN_FREE_MB = %d MB", SAFE_MIN_FREE_MB)
 
 def _warm_worker(t, q):
     try:
-        _ = model.encode(t, return_dense=True, num_processes=1)
+        _ = model.encode(t, return_dense=True)
         q.put("ok")
     except Exception as e:
         q.put(str(e))
@@ -216,7 +216,7 @@ class EmbeddingRequest(BaseModel):
 def _worker(t, q):
     try:
         # out = model.encode(t, return_dense=True)   # GPU or CPU 均安全
-        out = model.encode(t, return_dense=True, num_processes=1)
+        out = model.encode(t, return_dense=True)
         q.put(("ok", out))
     except Exception as e:
         q.put(("err", str(e)))