diff --git a/python/pyproject.toml b/python/pyproject.toml
index 1469daa6f..42e44e231 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -22,7 +22,7 @@ runtime_common = ["aiohttp", "decord", "fastapi",
     "packaging", "pillow", "prometheus-client>=0.20.0",
     "psutil", "pydantic", "python-multipart",
     "pyzmq>=25.1.2", "torchao", "uvicorn", "uvloop",
-    "modelscope"]
+    "modelscope", "xgrammar"]
 srt = ["sglang[runtime_common]", "torch", "vllm>=0.6.3.post1"]
 
 # HIP (Heterogeneous-computing Interface for Portability) for AMD