diff --git a/antora-playbook.yml b/antora-playbook.yml
index e2c910a4..9700f3d2 100644
--- a/antora-playbook.yml
+++ b/antora-playbook.yml
@@ -51,7 +51,7 @@ urls:
   redirect_facility: httpd
 ui:
   bundle:
-    url: https://github.com/spring-io/antora-ui-spring/releases/download/v0.4.11/ui-bundle.zip
+    url: https://github.com/spring-io/antora-ui-spring/releases/download/v0.4.15/ui-bundle.zip
     snapshot: true
 runtime:
   log: