diff --git a/demos/tx/java-demo/theta-tx-demo/pom.xml b/demos/tx/java-demo/theta-tx-demo/pom.xml
index f0a83dc..b90e1a7 100644
--- a/demos/tx/java-demo/theta-tx-demo/pom.xml
+++ b/demos/tx/java-demo/theta-tx-demo/pom.xml
@@ -32,7 +32,7 @@
         <dependency>
             <groupId>commons-io</groupId>
             <artifactId>commons-io</artifactId>
-            <version>2.5</version>
+            <version>2.7</version>
         </dependency>
 
         <dependency>