diff --git a/delay-callback-server/pom.xml b/delay-callback-server/pom.xml
index 93e2dc4..b0aebb2 100644
--- a/delay-callback-server/pom.xml
+++ b/delay-callback-server/pom.xml
@@ -47,7 +47,7 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>1.2.78</version>
+            <version>2.0.49</version>
         </dependency>
 
         <dependency>