diff --git a/pyproject.toml b/pyproject.toml
index a4ee1a41e65d..3c5b1d3bde44 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -64,13 +64,10 @@ requests = { version = "^2.28.2", optional = true }
 fastapi = { version = "^0.95.0", optional = true }
 starlette = { version = "^0.26.1", optional = true }
 uvicorn = { version = "^0.21.1", extras = ["standard"], optional = true }
-# Optional dependency (xgboost)
-xgboost = { version = "^1.6.2", optional = true }
 
 [tool.poetry.extras]
 simulation = ["ray"]
 rest = ["fastapi", "requests", "starlette", "uvicorn"]
-xgboost = ["xgboost"]
 
 [tool.poetry.group.dev.dependencies]
 types-dataclasses = "==0.6.6"