diff --git a/Project.toml b/Project.toml
index a554c3c..d5f714d 100644
--- a/Project.toml
+++ b/Project.toml
@@ -7,6 +7,7 @@ Distributed = "8ba89e20-285c-5b6f-9357-94700520ee1b"
 MacroTools = "1914dd2f-81c6-5fcd-8719-6d5c9610ff09"
 
 [compat]
+MacroTools = "0.5"
 julia = "1"
 
 [extras]