diff --git a/Project.toml b/Project.toml
index 4817ac0..da998bf 100644
--- a/Project.toml
+++ b/Project.toml
@@ -13,4 +13,5 @@ TOML = "fa267f1f-6049-4f14-aa54-33bafae1ed76"
 YAML = "ddb6d928-2868-570f-bddf-ab3f9cf99eb6"
 
 [compat]
+OrderedCollections = "1"
 julia = "^1.6"