diff --git a/Project.toml b/Project.toml
index 70a3a8f..cac61dd 100644
--- a/Project.toml
+++ b/Project.toml
@@ -18,5 +18,6 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 test = ["Test"]
 
 [compat]
+Unicode = "<0.0.1, 1"
 julia = "1"
 ModuleInterfaceTools = "1"