diff --git a/Project.toml b/Project.toml
index fd9bf5c..f702450 100644
--- a/Project.toml
+++ b/Project.toml
@@ -10,7 +10,7 @@ spglib_jll = "ac4a9f1e-bdb2-5204-990c-47c8b2f70d4e"
 
 [compat]
 StaticArrays = "0.8.3, 0.9, 0.10, 0.11, 0.12, 1.0"
-StructHelpers = "0.1"
+StructHelpers = "0.1, 1"
 julia = "1.3"
 spglib_jll = "1.15"