diff --git a/pyproject.toml b/pyproject.toml
index 855f5de..be49220 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,6 @@ tqdm = "^4.65.0"
 scipy = "^1.11.3"
 pandas = "^2.1.1"
 orjson = "^3.9.7"
-nuscenes-devkit = "^1.1.11"
 pyquaternion = "^0.9.9"
 dill = "^0.3.7"
 ncls = "^0.0.68"
@@ -51,6 +50,12 @@ tensorboard = "^2.11"
 tensorboardx = "^2.6.2.2"
 
 
+[tool.poetry.extras]
+
+nuscenes = [
+	"nuscenes-devkit" # = ^1.1.11"
+]
+
 [build-system]
 requires = ["poetry-core"]
 build-backend = "poetry.core.masonry.api"