diff --git a/Project.toml b/Project.toml
index d3b12f6..044b970 100644
--- a/Project.toml
+++ b/Project.toml
@@ -11,6 +11,7 @@ NaNStatistics = "b946abbf-3ea7-4610-9019-9858bfdeaf2d"
 Parameters = "d96e819e-fc66-5662-9728-84c9c7592b0a"
 PyCall = "438e738f-606a-5dbb-bf0a-cddfbfd45ab0"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
+Roots = "f2b01f46-fcfa-551c-844a-d8ac1e96c665"
 SpecialFunctions = "276daf66-3868-5448-9aa4-cd146d93841b"
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"