diff --git a/Project.toml b/Project.toml
index 9aeaf39..b086dab 100644
--- a/Project.toml
+++ b/Project.toml
@@ -33,6 +33,7 @@ Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 
 [compat]
+ColorSchemes = "3"
 julia = "1"
 
 [extras]