diff --git a/libraries/native_model/Cargo.toml b/libraries/native_model/Cargo.toml
index b91fa456..087dfc7d 100644
--- a/libraries/native_model/Cargo.toml
+++ b/libraries/native_model/Cargo.toml
@@ -10,6 +10,7 @@ readme = "README.md"
 build = "build.rs"
 keywords = ["serialization", "interoperability", "data-consistency", "flexibility", "performance"]
 categories = ["data-structures", "encoding", "rust-patterns"]
+rust-version = "1.73.0"
 
 [workspace]
 members = ["native_model_macro"]