diff --git a/Project.toml b/Project.toml
index 328d2b2..a103221 100644
--- a/Project.toml
+++ b/Project.toml
@@ -20,6 +20,7 @@ CoverageTools = "1"
 DefaultApplication = "1"
 DocStringExtensions = "0.8, 0.9"
 EzXML = "1"
+OrderedCollections = "1"
 PrettyTables = "0.12, 1.0, 2"
 UnPack = "1"
 julia = "1.6"