diff --git a/Project.toml b/Project.toml
index 679236a..cee72a7 100644
--- a/Project.toml
+++ b/Project.toml
@@ -13,6 +13,10 @@ UnitfulAstro = "6112ee07-acf9-5e0f-b108-d242c714bf9f"
 
 [compat]
 Roots = "2"
+Unitful = "1"
+QuadGK = "2"
+UnitfulAstro = "1"
+Documenter = "1"
 julia = "1.8"
 
 [extras]