diff --git a/java/mmall/pom.xml b/java/mmall/pom.xml
index 4246d921..cbcebc7e 100644
--- a/java/mmall/pom.xml
+++ b/java/mmall/pom.xml
@@ -167,7 +167,7 @@
     <dependency>
       <groupId>commons-net</groupId>
       <artifactId>commons-net</artifactId>
-      <version>3.1</version>
+      <version>3.9.0</version>
     </dependency>
 
     <!-- file upload -->