diff --git a/pyproject.toml b/pyproject.toml
index b4124da..d2331d2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,13 +46,6 @@ optional = true
 [tool.poetry.group.analysis.dependencies]
 pylint = "^3.0.3"
 
-[tool.poetry.group.cuda]
-optional = true
-
-[tool.poetry.group.cuda.dependencies]
-cupy = "^11.6.0"
-cuquantum-python-cu11 = "^23.3.0"
-
 [tool.pylint.main]
 ignored-modules = ["cupy", "cuquantum", "mpi4py"]