diff --git a/src/mock_vws/_query_validators/exceptions.py b/src/mock_vws/_query_validators/exceptions.py
index 5f4ba232..3d225297 100644
--- a/src/mock_vws/_query_validators/exceptions.py
+++ b/src/mock_vws/_query_validators/exceptions.py
@@ -757,7 +757,7 @@ def __init__(self) -> None:
             <tr><th>STATUS:</th><td>400</td></tr>
             <tr><th>MESSAGE:</th><td>Bad Request</td></tr>
             </table>
-            <hr/><a href="https://jetty.org/">Powered by Jetty:// 12.0.16</a><hr/>
+            <hr/><a href="https://jetty.org/">Powered by Jetty:// 12.0.20</a><hr/>
 
             </body>
             </html>
diff --git a/tests/mock_vws/test_query.py b/tests/mock_vws/test_query.py
index c89b6810..53736d03 100644
--- a/tests/mock_vws/test_query.py
+++ b/tests/mock_vws/test_query.py
@@ -65,7 +65,7 @@
     <tr><th>STATUS:</th><td>400</td></tr>
     <tr><th>MESSAGE:</th><td>Bad Request</td></tr>
     </table>
-    <hr/><a href="https://jetty.org/">Powered by Jetty:// 12.0.16</a><hr/>
+    <hr/><a href="https://jetty.org/">Powered by Jetty:// 12.0.20</a><hr/>
 
     </body>
     </html>