diff --git a/Cargo.toml b/Cargo.toml
index 4fb35b3..3770b90 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "nbezier"
-version = "0.2.0"
+version = "0.2.1"
 edition = "2021"
 license = "MIT"
 description = "Bezier curve library based on nalgebra"
diff --git a/src/nbezier.rs b/src/nbezier.rs
index da7517c..da41141 100644
--- a/src/nbezier.rs
+++ b/src/nbezier.rs
@@ -2,8 +2,7 @@
 
 use nalgebra::allocator::Allocator;
 use nalgebra::constraint::{DimEq, ShapeConstraint};
-use nalgebra::dimension::{Const, Dim, DimAdd, DimDiff, DimSub, DimSum, U1, U2, U4};
-use nalgebra::givens::GivensRotation;
+use nalgebra::dimension::{Const, Dim, DimAdd, DimDiff, DimSub, DimSum, U1, U2};
 use nalgebra::{DefaultAllocator, Matrix, OMatrix, OVector, Owned, RealField, Storage, Vector2};
 
 use crate::bounding_box::BoundingBox;