diff --git a/pom.xml b/pom.xml
index 56ebd1dd3..b127f6a76 100644
--- a/pom.xml
+++ b/pom.xml
@@ -111,7 +111,7 @@
 			<dependency>
 				<groupId>com.thoughtworks.xstream</groupId>
 				<artifactId>xstream</artifactId>
-				<version>1.3</version>
+				<version>1.4.18</version>
 			</dependency>
 			<dependency>
 				<groupId>oro</groupId>
diff --git a/projects/spring-modules-cache/pom.xml b/projects/spring-modules-cache/pom.xml
index dd964c622..c729bc73f 100644
--- a/projects/spring-modules-cache/pom.xml
+++ b/projects/spring-modules-cache/pom.xml
@@ -113,7 +113,7 @@
     <dependency>
       <groupId>com.thoughtworks.xstream</groupId>
       <artifactId>xstream</artifactId>
-      <version>1.3.1</version>
+      <version>1.4.18</version>
     </dependency>
     <dependency>
       <groupId>oro</groupId>