diff --git a/src/JavaSecurity/LearningDeserialization/pom.xml b/src/JavaSecurity/LearningDeserialization/pom.xml
index 2cee656..5f18264 100644
--- a/src/JavaSecurity/LearningDeserialization/pom.xml
+++ b/src/JavaSecurity/LearningDeserialization/pom.xml
@@ -26,7 +26,7 @@
         <dependency>
             <groupId>com.thoughtworks.xstream</groupId>
             <artifactId>xstream</artifactId>
-            <version>1.4.6</version>
+            <version>1.4.19</version>
         </dependency>
         <dependency>
             <groupId>org.yaml</groupId>