diff --git a/cloud-tasks/createHttpTask.js b/cloud-tasks/createHttpTask.js
index 5ab724fd8e..a6817875a3 100644
--- a/cloud-tasks/createHttpTask.js
+++ b/cloud-tasks/createHttpTask.js
@@ -51,6 +51,9 @@ function main(
 
     const task = {
       httpRequest: {
+        headers: {
+          'Content-Type': 'text/plain',
+        },
         httpMethod: 'POST',
         url,
       },
diff --git a/cloud-tasks/createHttpTaskWithToken.js b/cloud-tasks/createHttpTaskWithToken.js
index bffe6d87ae..580b912077 100644
--- a/cloud-tasks/createHttpTaskWithToken.js
+++ b/cloud-tasks/createHttpTaskWithToken.js
@@ -51,6 +51,9 @@ function main(
 
     const task = {
       httpRequest: {
+        headers: {
+          'Content-Type': 'text/plain',
+        },
         httpMethod: 'POST',
         url,
         oidcToken: {
diff --git a/cloud-tasks/createTask.js b/cloud-tasks/createTask.js
index 95c3b9f5ae..6496ca7862 100644
--- a/cloud-tasks/createTask.js
+++ b/cloud-tasks/createTask.js
@@ -48,6 +48,9 @@ function main(
 
     const task = {
       appEngineHttpRequest: {
+        headers: {
+          'Content-Type': 'text/plain',
+        },
         httpMethod: 'POST',
         relativeUri: '/log_payload',
       },
@@ -66,12 +69,14 @@ function main(
 
     console.log('Sending task:');
     console.log(task);
+
     // Send create task request.
     const request = {parent: parent, task: task};
     const [response] = await client.createTask(request);
     const name = response.name;
     console.log(`Created task ${name}`);
   }
+
   createTask();
   // [END cloud_tasks_appengine_create_task]
 }