diff --git a/src/materials_plasticity.jl b/src/materials_plasticity.jl
index 42e8c38..8da27b9 100644
--- a/src/materials_plasticity.jl
+++ b/src/materials_plasticity.jl
@@ -1,5 +1,4 @@
 using ForwardDiff
-using NLsolve
 
 """
 Creating functions for newton: xₙ₊₁ = xₙ - df⁻¹ * f and initial values