diff --git a/pixelle_video/pipelines/standard.py b/pixelle_video/pipelines/standard.py
index aafcb4f..af10369 100644
--- a/pixelle_video/pipelines/standard.py
+++ b/pixelle_video/pipelines/standard.py
@@ -44,7 +44,7 @@ from pixelle_video.utils.content_generators import (
 # Whether to enable parallel processing for RunningHub workflows
 RUNNING_HUB_PARALLEL_ENABLED = True
 # Parallel limit for RunningHub workflows
-RUNNING_HUB_PARALLEL_LIMIT = 5
+RUNNING_HUB_PARALLEL_LIMIT = 1
 
 
 class StandardPipeline(BasePipeline):
@@ -379,7 +379,7 @@ class StandardPipeline(BasePipeline):
                 (config.image_workflow and config.image_workflow.startswith("runninghub/"))
             )
             
-            if is_runninghub and RUNNING_HUB_PARALLEL_ENABLED:
+            if is_runninghub and RUNNING_HUB_PARALLEL_ENABLED and RUNNING_HUB_PARALLEL_LIMIT > 1:
                 logger.info(f"🚀 Using parallel processing for RunningHub workflows (max {RUNNING_HUB_PARALLEL_LIMIT} concurrent)")
                 logger.info(f"   TTS: {'runninghub' if config.tts_workflow and config.tts_workflow.startswith('runninghub/') else 'local'}")
                 logger.info(f"   Image: {'runninghub' if config.image_workflow and config.image_workflow.startswith('runninghub/') else 'local'}")