diff --git a/p19-springboot-freemarker/pom.xml b/p19-springboot-freemarker/pom.xml
index ec4de6c..248e36d 100644
--- a/p19-springboot-freemarker/pom.xml
+++ b/p19-springboot-freemarker/pom.xml
@@ -55,7 +55,7 @@
         <dependency>
             <groupId>com.thoughtworks.xstream</groupId>
             <artifactId>xstream</artifactId>
-            <version>1.4.11.1</version>
+            <version>1.4.15</version>
         </dependency>
 
         <!--freemarker依赖-->