diff --git a/Project.toml b/Project.toml
index 407ae3e..521eae0 100644
--- a/Project.toml
+++ b/Project.toml
@@ -7,6 +7,7 @@ version = "0.1.0"
 StructTypes = "856f2bd8-1eba-4b0a-8007-ebc267875bd4"
 
 [compat]
+StructTypes = "1"
 julia = "1.4"
 
 [extras]