diff --git a/eureka-client/build.gradle b/eureka-client/build.gradle
index a6e556b4a3..3cea559ae6 100644
--- a/eureka-client/build.gradle
+++ b/eureka-client/build.gradle
@@ -7,7 +7,7 @@ configurations.all {
 
 dependencies {
     compile "com.netflix.netflix-commons:netflix-eventbus:0.3.0"
-    compile 'com.thoughtworks.xstream:xstream:1.4.19'
+    compile 'com.thoughtworks.xstream:xstream:1.4.20'
     compile "com.netflix.archaius:archaius-core:${archaiusVersion}"
     compile 'javax.ws.rs:jsr311-api:1.1.1'
     compile "com.netflix.servo:servo-core:${servoVersion}"