diff --git a/Cargo.toml b/Cargo.toml
index 6ae7913..c794330 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,10 +10,9 @@ readme = "README.MD"
 keywords = ["search", "tokenizer", "Chinese", "tantivy"]
 
 [dependencies]
-tantivy = "0.19.1"
+tantivy = "0.20"
 jieba-rs = { version = "0.6.7", default-features = false }
-log = "0.4.17"
+log = "0.4.18"
 
 [dev-dependencies]
-flexi_logger = "0.25.1"
-
+flexi_logger = "0.25.5"
diff --git a/src/tokenizer.rs b/src/tokenizer.rs
index d774faf..a45c2ac 100644
--- a/src/tokenizer.rs
+++ b/src/tokenizer.rs
@@ -2,7 +2,6 @@ use crate::{options::TokenizerOption, stream::CangjieTokenStream};
 use jieba_rs::Jieba;
 use log::trace;
 use std::sync::Arc;
-use tantivy::tokenizer::BoxTokenStream;
 
 #[derive(Clone, Debug)]
 pub struct CangJieTokenizer {
@@ -22,8 +21,10 @@ impl Default for CangJieTokenizer {
 }
 
 impl ::tantivy::tokenizer::Tokenizer for CangJieTokenizer {
+    type TokenStream<'a> = CangjieTokenStream<'a>;
+
     /// Cut text into tokens
-    fn token_stream<'a>(&self, text: &'a str) -> BoxTokenStream<'a> {
+    fn token_stream<'a>(&mut self, text: &'a str) -> CangjieTokenStream<'a> {
         let result = match self.option {
             TokenizerOption::All => self.worker.cut_all(text),
             TokenizerOption::Default { hmm: use_hmm } => self.worker.cut(text, use_hmm),
@@ -40,6 +41,6 @@ impl ::tantivy::tokenizer::Tokenizer for CangJieTokenizer {
             }
         };
         trace!("{:?}->{:?}", text, result);
-        BoxTokenStream::from(CangjieTokenStream::new(result))
+        CangjieTokenStream::new(result)
     }
 }