diff --git a/src/BSplines/BSplines.jl b/src/BSplines/BSplines.jl
index 3937e396..e6656c92 100644
--- a/src/BSplines/BSplines.jl
+++ b/src/BSplines/BSplines.jl
@@ -18,7 +18,7 @@ export
     evaluate!,
     support
 
-using LazyArrays: ApplyArray
+using LazyArrays: Vcat
 using StaticArrays: @SVector
 
 using ..DifferentialOps
diff --git a/src/BSplines/knots.jl b/src/BSplines/knots.jl
index 2d56ff7f..02941a6d 100644
--- a/src/BSplines/knots.jl
+++ b/src/BSplines/knots.jl
@@ -12,7 +12,7 @@ function augment_knots(knots::AbstractVector{T}, ::BSplineOrder{k}) where {T,k}
     # a lazy array.
     t_left = @SVector fill(first(knots), k - 1)
     t_right = @SVector fill(last(knots), k - 1)
-    ApplyArray(vcat, t_left, knots, t_right)
+    Vcat(t_left, knots, t_right)
 end
 
 @inline augment_knots(knots, k::Integer) = augment_knots(knots, BSplineOrder(k))