diff --git a/spring-cloud-task-samples/batch-events/README.adoc b/spring-cloud-task-samples/batch-events/README.adoc
index 0bfebdd1..d884ad4f 100644
--- a/spring-cloud-task-samples/batch-events/README.adoc
+++ b/spring-cloud-task-samples/batch-events/README.adoc
@@ -27,7 +27,7 @@ $ ./mvnw clean install
 
 [source,shell,indent=2]
 ----
-$ java -jar target/batch-events-1.2.1.RELEASE.jar --spring.cloud.stream.bindings.batch-events.contentType=application/json
+$ java -jar target/batch-events-1.2.1.RELEASE.jar
 ----
 
 For example you can listen for specific job execution events on a specified channel with a Spring Cloud Stream Sink
diff --git a/spring-cloud-task-samples/task-events/README.adoc b/spring-cloud-task-samples/task-events/README.adoc
index 8ff78d06..14844cc1 100644
--- a/spring-cloud-task-samples/task-events/README.adoc
+++ b/spring-cloud-task-samples/task-events/README.adoc
@@ -17,7 +17,7 @@ $ ./mvnw clean install
 
 [source,shell,indent=2]
 ----
-$ java -jar target/task-events-1.2.1.RELEASE.jar --spring.cloud.stream.bindings.task-events.contentType=application/json
+$ java -jar target/task-events-1.2.1.RELEASE.jar
 ----
 
 You can listen for the events on the task-events channel with a Spring Cloud Stream Sink