diff --git a/DifferentiationInterface/test/Project.toml b/DifferentiationInterface/test/Project.toml
index 4120a7c81..d9c09f388 100644
--- a/DifferentiationInterface/test/Project.toml
+++ b/DifferentiationInterface/test/Project.toml
@@ -29,5 +29,6 @@ JET = "0.9,0.10,0.11"
 JLArrays = "0.2,0.3"
 Pkg = "1"
 Random = "1"
+SparseMatrixColorings = "0.4"
 StableRNGs = "1.0.1"
 Test = "1"