diff --git a/Project.toml b/Project.toml
index 5473f8a..b73186c 100644
--- a/Project.toml
+++ b/Project.toml
@@ -16,6 +16,7 @@ Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 [compat]
 BrillouinZoneMeshes = "0.2.2"
 CompositeGrids = "0.1"
+DelimitedFiles = "1"
 Lehmann = "0.2"
 StaticArrays = "1"
 julia = "1.6, 1.7, 1.8, 1.9"