diff --git a/Project.toml b/Project.toml
index 87b2c213ed..88c641f063 100644
--- a/Project.toml
+++ b/Project.toml
@@ -126,7 +126,7 @@ Random = "1"
 Roots = "2"
 SparseArrays = "1"
 SpecialFunctions = "2"
-Spglib = "0.9.4"
+Spglib = "0.9.4, 1"
 StaticArrays = "1"
 Statistics = "1"
 Test = "1"