diff --git a/docs/Project.toml b/docs/Project.toml
index 147de39..328196d 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -3,4 +3,5 @@ Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
 FiniteDifferenceMatrices = "a7a66f33-e7b8-47af-b618-f9b5bea05f3d"
 Printf = "de0858da-6303-5e67-8744-51eddeeeb8d7"
 Markdown = "b77e0a4c-d291-57a0-90e8-8db25a27a240"
-CairoMakie = "13f3f980-e62b-5c42-98c6-ff1f3baf88f0"
\ No newline at end of file
+CairoMakie = "13f3f980-e62b-5c42-98c6-ff1f3baf88f0"
+SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
\ No newline at end of file
diff --git a/docs/make.jl b/docs/make.jl
index ea4cd43..24c4d32 100644
--- a/docs/make.jl
+++ b/docs/make.jl
@@ -3,6 +3,7 @@ using Documenter
 using Printf
 using Markdown
 using CairoMakie
+using SparseArrays
 
 DocMeta.setdocmeta!(FiniteDifferenceMatrices, :DocTestSetup, :(using FiniteDifferenceMatrices); recursive=true)