diff --git a/Project.toml b/Project.toml
index 79a8ae8..66c22fb 100644
--- a/Project.toml
+++ b/Project.toml
@@ -16,6 +16,7 @@ StatsBase = "2913bbd2-ae8a-5f71-8c99-4fb6c76f3a91"
 [compat]
 Arpack = "0.3, 0.4"
 StatsBase = "0.29, 0.30, 0.31, 0.32, 0.33"
+julia = "1"
 
 [extras]
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"