diff --git a/Project.toml b/Project.toml
index 5a11a95..ee8a217 100644
--- a/Project.toml
+++ b/Project.toml
@@ -5,6 +5,7 @@ uuid = "46d2c3a1-f734-5fdb-9937-b9b9aeba4221"
 MacroTools = "1914dd2f-81c6-5fcd-8719-6d5c9610ff09"
 
 [compat]
+MacroTools = "0.5"
 julia = "1"
 
 [extras]