diff --git a/bom/pom.xml b/bom/pom.xml
index 0109f3c90aa2..b7e685a4658b 100644
--- a/bom/pom.xml
+++ b/bom/pom.xml
@@ -109,7 +109,7 @@ THE SOFTWARE.
       <dependency>
         <groupId>com.thoughtworks.xstream</groupId>
         <artifactId>xstream</artifactId>
-        <version>1.4.20</version>
+        <version>1.4.21</version>
       </dependency>
       <dependency>
         <groupId>commons-beanutils</groupId>