diff --git a/test/Project.toml b/test/Project.toml
index d068c7b..b93bec8 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -15,6 +15,7 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [compat]
 Aqua = "0.8.9"
+DiagonalArrays = "0.2"
 BlockArrays = "1"
 NamedDimsArrays = "0.5"
 BlockSparseArrays = "0.2"