diff --git a/pom.xml b/pom.xml
index 5e9d8783..c37f09d4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -272,6 +272,11 @@
       <artifactId>jetty-jmx</artifactId>
       <version>${jetty.version}</version>
     </dependency>
+    <dependency>
+      <groupId>org.eclipse.jetty.websocket</groupId>
+      <artifactId>websocket-server</artifactId> <!-- or javax-websocket-server-impl -->
+      <version>${jetty.version}</version>
+    </dependency>
 
     <dependency>
       <groupId>io.jenkins.lib</groupId>