diff --git a/war/pom.xml b/war/pom.xml
index 3f816fb897..6b0836fd01 100644
--- a/war/pom.xml
+++ b/war/pom.xml
@@ -100,7 +100,7 @@ THE SOFTWARE.
       -->
       <groupId>org.jenkins-ci</groupId>
       <artifactId>winstone</artifactId>
-      <version>5.8</version>
+      <version>5.9</version>
       <scope>test</scope>
     </dependency>
     <dependency>