diff --git a/tosan-httpclient-spring-boot-starter/src/main/java/com/tosan/client/http/starter/configuration/AbstractFeignConfiguration.java b/tosan-httpclient-spring-boot-starter/src/main/java/com/tosan/client/http/starter/configuration/AbstractFeignConfiguration.java
index bb02729..8495362 100644
--- a/tosan-httpclient-spring-boot-starter/src/main/java/com/tosan/client/http/starter/configuration/AbstractFeignConfiguration.java
+++ b/tosan-httpclient-spring-boot-starter/src/main/java/com/tosan/client/http/starter/configuration/AbstractFeignConfiguration.java
@@ -156,7 +156,8 @@ public Decoder feignDecoder(HttpMessageConverter<Object> httpMessageConverter) {
     public HttpMessageConverter<Object> httpMessageConverter(ObjectMapper objectMapper) {
         MappingJackson2HttpMessageConverter mappingJackson2HttpMessageConverter =
                 new MappingJackson2HttpMessageConverter(objectMapper);
-        messageConverters = () -> new HttpMessageConverters(mappingJackson2HttpMessageConverter);
+        HttpMessageConverters httpMessageConverters = new HttpMessageConverters(mappingJackson2HttpMessageConverter);
+        messageConverters = () -> httpMessageConverters;
         return mappingJackson2HttpMessageConverter;
     }
 
diff --git a/tosan-httpclient-spring-boot-starter/src/main/java/com/tosan/client/http/starter/impl/feign/exception/TosanWebServiceException.java b/tosan-httpclient-spring-boot-starter/src/main/java/com/tosan/client/http/starter/impl/feign/exception/TosanWebServiceException.java
index ccee955..7cac731 100644
--- a/tosan-httpclient-spring-boot-starter/src/main/java/com/tosan/client/http/starter/impl/feign/exception/TosanWebServiceException.java
+++ b/tosan-httpclient-spring-boot-starter/src/main/java/com/tosan/client/http/starter/impl/feign/exception/TosanWebServiceException.java
@@ -8,6 +8,7 @@
  * @since 1/22/2021
  */
 public abstract class TosanWebServiceException extends Exception implements TosanWebServiceBaseException {
+    private static final long serialVersionUID = 7501000302649392364L;
     private Map<String, Object> errorParam;
     private String message;