diff --git a/Cargo.toml b/Cargo.toml
index baf6747..9a18ed7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,7 +4,7 @@ license = "MIT"
 description = "A unofficial Rust library for the Ernie API"
 homepage = "https://github.com/chenwanqq/erniebot-rs"
 repository = "https://github.com/chenwanqq/erniebot-rs"
-version = "0.3.1"
+version = "0.3.2"
 edition = "2021"
 exclude = [".github/",".vscode/",".gitignore"]
 
diff --git a/README.md b/README.md
index 6f0f256..0ec644c 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ Add the following to your Cargo.toml file:
 
 ```toml
 [dependencies]
-erniebot-rs = "0.3.1"
+erniebot-rs = "0.3.2"
 ```
 
 ## Authentication
diff --git a/README_zh.md b/README_zh.md
index 1dbb354..70c4e81 100644
--- a/README_zh.md
+++ b/README_zh.md
@@ -10,7 +10,7 @@
   
 ```toml  
 [dependencies]  
-erniebot-rs = "0.3.1"
+erniebot-rs = "0.3.2"
 ```
 
 ## 鉴权
diff --git a/src/chat/endpoint.rs b/src/chat/endpoint.rs
index dc1e5ca..1f19a5a 100644
--- a/src/chat/endpoint.rs
+++ b/src/chat/endpoint.rs
@@ -15,6 +15,7 @@ static CHAT_API_URL: &str = "https://aip.baidubce.com/rpc/2.0/ai_custom/v1/wenxi
 
 /** ChatEndpoint is a struct that represents the chat endpoint of erniebot API
 */
+#[derive(Debug, Clone)]
 pub struct ChatEndpoint {
     url: Url,
     access_token: String,
diff --git a/src/embedding/endpoint.rs b/src/embedding/endpoint.rs
index fa79d3e..de808ec 100644
--- a/src/embedding/endpoint.rs
+++ b/src/embedding/endpoint.rs
@@ -11,6 +11,7 @@ static EMBEDDING_BASE_URL: &str =
 
 /** ChatEndpoint is a struct that represents the chat endpoint of erniebot API
 */
+#[derive(Debug, Clone)]
 pub struct EmbeddingEndpoint {
     url: Url,
     access_token: String,
diff --git a/src/reranker/endpoint.rs b/src/reranker/endpoint.rs
index 8467bfe..20e6783 100644
--- a/src/reranker/endpoint.rs
+++ b/src/reranker/endpoint.rs
@@ -11,6 +11,7 @@ static RERANKER_BASE_URL: &str =
 
 /** ChatEndpoint is a struct that represents the chat endpoint of erniebot API
 */
+#[derive(Debug, Clone)]
 pub struct RerankerEndpoint {
     url: Url,
     access_token: String,
diff --git a/src/text2image/endpoint.rs b/src/text2image/endpoint.rs
index 3a394c6..6cbf3bb 100644
--- a/src/text2image/endpoint.rs
+++ b/src/text2image/endpoint.rs
@@ -11,6 +11,7 @@ use crate::utils::{build_url, get_access_token};
 static TEXT2IMAGE_BASE_URL: &str =
     "https://aip.baidubce.com/rpc/2.0/ai_custom/v1/wenxinworkshop/text2image/";
 /// Text2ImageEndpoint is a struct that represents the text2image endpoint of erniebot API
+#[derive(Debug, Clone)]
 pub struct Text2ImageEndpoint {
     url: Url,
     access_token: String,