diff --git a/Project.toml b/Project.toml
index 62b70e6f..79900b63 100644
--- a/Project.toml
+++ b/Project.toml
@@ -10,8 +10,9 @@ Requires = "ae029012-a4dd-5104-9daa-d747884805df"
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 
 [compat]
-Functors = "0"
+Functors = "0.1, 0.2"
 Requires = "0.5, 1"
+julia = "1.6" 
 
 [extras]
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"