diff --git a/docs/developer/Http_Service.md b/docs/developer/Http_Service.md
index e35e7e5..1f0b351 100644
--- a/docs/developer/Http_Service.md
+++ b/docs/developer/Http_Service.md
@@ -1,9 +1,11 @@
 ## Launch a Text-to-Image Http Service
 
-Launch an HTTP-based text-to-image service that generates images from textual descriptions (prompts) using the DiT model. The generated images can either be returned directly to users or saved to a specified disk location.
+Launch an HTTP-based text-to-image service that generates images from textual descriptions (prompts) using the DiT model. 
+The generated images can either be returned directly to users or saved to a specified disk location.
+For example, the following command launches a HTTP service with 4 GPUs, 2 Ulysses parallel degree, 2 PipeFusion parallel degree, and the model path is `./models/FLUX.1-schnell`.
 
 ```bash
-python ./entrypoints/launch.py --world_size 4 --ulysses_parallel_degree 2 --pipefusion_parallel_degree 2 --model_path /your_model_path
+python ./entrypoints/launch.py --world_size 4 --ulysses_parallel_degree 2 --pipefusion_parallel_degree 2 --model_path /your_model_path/FLUX.1-schnell
 ```
 
 
diff --git a/entrypoints/launch.py b/entrypoints/launch.py
index 1cc7b7b..2f39f85 100644
--- a/entrypoints/launch.py
+++ b/entrypoints/launch.py
@@ -183,7 +183,7 @@ async def generate_image(request: GenerateRequest):
 
 if __name__ == "__main__":
     parser = argparse.ArgumentParser(description='xDiT HTTP Service')
-    parser.add_argument('--model_path', type=str, default="/demo-huabei2/models/dit/FLUX.1-schnell", help='Path to the model')
+    parser.add_argument('--model_path', type=str, help='Path to the model', required=True)
     parser.add_argument('--world_size', type=int, default=1, help='Number of parallel workers')
     parser.add_argument('--pipefusion_parallel_degree', type=int, default=1, help='Degree of pipeline fusion parallelism')
     parser.add_argument('--ulysses_parallel_degree', type=int, default=1, help='Degree of Ulysses parallelism')
diff --git a/xfuser/__version__.py b/xfuser/__version__.py
index 61eca0a..df12433 100644
--- a/xfuser/__version__.py
+++ b/xfuser/__version__.py
@@ -1 +1 @@
-__version__ = "0.4.2rc2"
+__version__ = "0.4.2"