diff --git a/codes/javatool/javatool-monitor/javatool-zipkin-spring/pom.xml b/codes/javatool/javatool-monitor/javatool-zipkin-spring/pom.xml
index 8ada12b..5f673bb 100644
--- a/codes/javatool/javatool-monitor/javatool-zipkin-spring/pom.xml
+++ b/codes/javatool/javatool-monitor/javatool-zipkin-spring/pom.xml
@@ -15,7 +15,7 @@
         <maven.compiler.target>1.7</maven.compiler.target>
 
         <spring.version>4.3.26.RELEASE</spring.version>
-        <log4j.version>2.13.0</log4j.version>
+        <log4j.version>2.17.1</log4j.version>
         <brave.version>5.10.1</brave.version>
     </properties>