diff --git a/Project.toml b/Project.toml
index d1e0ff7..4bbc588 100644
--- a/Project.toml
+++ b/Project.toml
@@ -15,7 +15,7 @@ Unitful = "1986cc42-f94f-5a68-af5c-568840ba703d"
 UnitfulAtomic = "a7773ee8-282e-5fa2-be4e-bd808c38a91a"
 
 [compat]
-AtomsBase = "0.3"
+AtomsBase = "0.3, 0.4"
 Distances = "0.10"
 ExtXYZ = "0.1"
 PeriodicTable = "1"