diff --git a/structure-learn/cache-learn/pom.xml b/structure-learn/cache-learn/pom.xml
index 9c3d8b7..08390e4 100644
--- a/structure-learn/cache-learn/pom.xml
+++ b/structure-learn/cache-learn/pom.xml
@@ -16,7 +16,7 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>1.2.68</version>
+            <version>1.2.83</version>
         </dependency>
         <dependency>
             <groupId>org.apache.hadoop</groupId>