diff --git a/Rust/source/Cargo.lock b/Rust/source/Cargo.lock
index 5ac6d3c..f67902a 100644
--- a/Rust/source/Cargo.lock
+++ b/Rust/source/Cargo.lock
@@ -2,7 +2,7 @@
 # It is not intended for manual editing.
 [[package]]
 name = "RS-SnowF"
-version = "0.1.0"
+version = "1.0.0"
 dependencies = [
  "chrono",
  "lazy_static",
diff --git a/Rust/source/Cargo.toml b/Rust/source/Cargo.toml
index fcb3265..e96c958 100644
--- a/Rust/source/Cargo.toml
+++ b/Rust/source/Cargo.toml
@@ -2,7 +2,7 @@
 name = "RS-SnowF"
 version = "1.0.0"
 authors = ["yitter <yitter@126.com>"]
-edition = "2021"
+edition = "2018"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
diff --git a/Rust/source/src/yitgen/gen/yit_id_helper.rs b/Rust/source/src/yitgen/gen/yit_id_helper.rs
index 18b5d78..24642a1 100644
--- a/Rust/source/src/yitgen/gen/yit_id_helper.rs
+++ b/Rust/source/src/yitgen/gen/yit_id_helper.rs
@@ -23,12 +23,14 @@ impl YitIdHelper {
         }
     }
 
+
     pub fn SetIdGenerator(options: IdGeneratorOptions) {
         let mut idgenArc = YitIdHelper::IdGenInstance();
         let mut idgen = idgenArc.lock().unwrap();
         idgen.Worker.SetOptions(options);
     }
 
+    #[no_mangle]
     pub fn NextId() -> i64 {
         let mut idgenArc = YitIdHelper::IdGenInstance();
         let mut idgen = idgenArc.lock().unwrap();