diff --git a/_infra/helm/collection-exercise/Chart.yaml b/_infra/helm/collection-exercise/Chart.yaml
index ae268863b..9cda11243 100644
--- a/_infra/helm/collection-exercise/Chart.yaml
+++ b/_infra/helm/collection-exercise/Chart.yaml
@@ -18,6 +18,5 @@ version: 1.2.2
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application.
-appVersion: 11.0.39
-
 
+appVersion: 11.0.40
diff --git a/pom.xml b/pom.xml
index 61ff67ee9..104062cc9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -204,7 +204,7 @@
         <dependency>
             <groupId>com.thoughtworks.xstream</groupId>
             <artifactId>xstream</artifactId>
-            <version>1.4.9</version>
+            <version>1.4.15</version>
         </dependency>
 
         <dependency>