diff --git a/spring-boot-modules/spring-boot-documentation/src/test/resources/asyncapi.json b/spring-boot-modules/spring-boot-documentation/src/test/resources/asyncapi.json
index 260f9382f9..45be27f571 100644
--- a/spring-boot-modules/spring-boot-documentation/src/test/resources/asyncapi.json
+++ b/spring-boot-modules/spring-boot-documentation/src/test/resources/asyncapi.json
@@ -8,7 +8,7 @@
   "defaultContentType": "application/json",
   "servers": {
     "kafka": {
-      "url": "localhost:29092",
+      "url": "localhost:9092",
       "protocol": "kafka"
     }
   },