diff --git a/src/main/java/cn/lihongjie/coal/spring/config/JacksonConfig.java b/src/main/java/cn/lihongjie/coal/spring/config/JacksonConfig.java
index 78a1d4a7..cb0d6073 100644
--- a/src/main/java/cn/lihongjie/coal/spring/config/JacksonConfig.java
+++ b/src/main/java/cn/lihongjie/coal/spring/config/JacksonConfig.java
@@ -8,24 +8,13 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
 import java.time.LocalDateTime;
-import java.time.chrono.IsoChronology;
 import java.time.format.DateTimeFormatter;
-import java.time.format.DateTimeFormatterBuilder;
-import java.time.format.ResolverStyle;
-
-import static java.time.format.DateTimeFormatter.ISO_LOCAL_DATE;
-import static java.time.format.DateTimeFormatter.ISO_LOCAL_TIME;
 
 @Configuration
 public class JacksonConfig {
 
 
-    private DateTimeFormatter dateTimeFormatter = new DateTimeFormatterBuilder()
-            .parseCaseInsensitive()
-            .append(ISO_LOCAL_DATE)
-            .appendLiteral(" ")
-            .append(ISO_LOCAL_TIME)
-            .toFormatter();
+    private DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
 
     @Bean
     public SimpleModule javaTimeModule() {