diff --git a/.gitignore b/.gitignore
index 76b1021d..34f44cb4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 .nyc_output
 coverage
 node_modules
+.idea
diff --git a/event-handler/receive.js b/event-handler/receive.js
index d8494dd4..75ea6edb 100644
--- a/event-handler/receive.js
+++ b/event-handler/receive.js
@@ -48,9 +48,15 @@ function receiverHandle (state, event) {
       .catch(error => errors.push(Object.assign(error, { event })))
   })
 
-  return Promise.all(promises).then(() => {
+  return Promise.all(promises).then((results) => {
+    const mergedResults = results.reduce((merged, curr) => {
+      if (typeof curr === 'object') {
+        return Object.assign({}, merged, curr)
+      } else { return merged }
+    }, {})
+
     if (errors.length === 0) {
-      return
+      return mergedResults
     }
 
     errorHandlers.forEach(handler => errors.forEach(wrapErrorHandler.bind(null, handler)))
diff --git a/index.d.ts b/index.d.ts
index 255942f4..d29fecab 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -4105,7 +4105,7 @@ declare class Webhooks {
   public on(event: "error", callback: (event: Error) => void): void;
   public on(
     event: "*" | string[],
-    callback: (event: Webhooks.WebhookEvent<any>) => Promise<void> | void
+    callback: (event: Webhooks.WebhookEvent<any>) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4117,7 +4117,7 @@ declare class Webhooks {
       | "check_run.rerequested",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadCheckRun>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4128,63 +4128,63 @@ declare class Webhooks {
       | "check_suite.rerequested",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadCheckSuite>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "commit_comment" | "commit_comment.created",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadCommitComment>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "content_reference",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadContentReference>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "create",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadCreate>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "delete",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadDelete>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "deploy_key" | "deploy_key.created" | "deploy_key.deleted",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadDeployKey>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "deployment",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadDeployment>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "deployment_status",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadDeploymentStatus>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "fork",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadFork>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4193,14 +4193,14 @@ declare class Webhooks {
       event: Webhooks.WebhookEvent<
         Webhooks.WebhookPayloadGithubAppAuthorization
       >
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "gollum",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadGollum>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4211,7 +4211,7 @@ declare class Webhooks {
       | "installation.new_permissions_accepted",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadInstallation>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4223,7 +4223,7 @@ declare class Webhooks {
       event: Webhooks.WebhookEvent<
         Webhooks.WebhookPayloadInstallationRepositories
       >
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4234,7 +4234,7 @@ declare class Webhooks {
       | "issue_comment.edited",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadIssueComment>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4258,14 +4258,14 @@ declare class Webhooks {
       | "issues.unpinned",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadIssues>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "label" | "label.created" | "label.deleted" | "label.edited",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadLabel>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4278,28 +4278,28 @@ declare class Webhooks {
       | "marketplace_purchase.purchased",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadMarketplacePurchase>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "member" | "member.added" | "member.deleted" | "member.edited",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadMember>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "membership" | "membership.added" | "membership.removed",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadMembership>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "meta" | "meta.deleted",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadMeta>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4312,7 +4312,7 @@ declare class Webhooks {
       | "milestone.opened",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadMilestone>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4325,21 +4325,21 @@ declare class Webhooks {
       | "organization.renamed",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadOrganization>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "org_block" | "org_block.blocked" | "org_block.unblocked",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadOrgBlock>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "page_build",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadPageBuild>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4352,7 +4352,7 @@ declare class Webhooks {
       | "project_card.moved",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadProjectCard>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4364,7 +4364,7 @@ declare class Webhooks {
       | "project_column.moved",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadProjectColumn>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4377,14 +4377,14 @@ declare class Webhooks {
       | "project.reopened",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadProject>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "public",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadPublic>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4406,7 +4406,7 @@ declare class Webhooks {
       | "pull_request.synchronize",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadPullRequest>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4417,7 +4417,7 @@ declare class Webhooks {
       | "pull_request_review.submitted",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadPullRequestReview>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4430,14 +4430,14 @@ declare class Webhooks {
       event: Webhooks.WebhookEvent<
         Webhooks.WebhookPayloadPullRequestReviewComment
       >
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "push",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadPush>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4447,7 +4447,7 @@ declare class Webhooks {
       | "registry_package.updated",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadRegistryPackage>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4461,14 +4461,14 @@ declare class Webhooks {
       | "release.unpublished",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadRelease>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "repository_dispatch",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadRepositoryDispatch>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4485,14 +4485,14 @@ declare class Webhooks {
       | "repository.unarchived",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadRepository>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "repository_import",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadRepositoryImport>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4505,7 +4505,7 @@ declare class Webhooks {
       event: Webhooks.WebhookEvent<
         Webhooks.WebhookPayloadRepositoryVulnerabilityAlert
       >
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4516,21 +4516,21 @@ declare class Webhooks {
       | "security_advisory.updated",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadSecurityAdvisory>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "star" | "star.created" | "star.deleted",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadStar>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "status",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadStatus>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
@@ -4543,21 +4543,21 @@ declare class Webhooks {
       | "team.removed_from_repository",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadTeam>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "team_add",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadTeamAdd>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public on(
     event: "watch" | "watch.started",
     callback: (
       event: Webhooks.WebhookEvent<Webhooks.WebhookPayloadWatch>
-    ) => Promise<void> | void
+    ) => Promise<object | void> | object | void
   ): void;
 
   public sign(data: any): string;
diff --git a/middleware/middleware.js b/middleware/middleware.js
index 3daffad3..7b09aec1 100644
--- a/middleware/middleware.js
+++ b/middleware/middleware.js
@@ -11,7 +11,7 @@ function middleware (state, request, response, next) {
     // the next callback is set when used as an express middleware. That allows
     // it to define custom routes like /my/custom/page while the webhooks are
     // expected to be sent to the / root path. Otherwise the root path would
-    // match all requests and would make it impossible to define custom rooutes
+    // match all requests and would make it impossible to define custom routes
     if (typeof next === 'function') {
       next()
       return
@@ -51,8 +51,9 @@ function middleware (state, request, response, next) {
       })
     })
 
-    .then(() => {
-      response.end('ok\n')
+    .then((responseBody) => {
+      response.setHeader('Content-Type', 'application/json')
+      response.end(JSON.stringify(responseBody))
     })
 
     .catch(error => {
diff --git a/test/integration/event-handler-test.js b/test/integration/event-handler-test.js
index c805c846..a2317812 100644
--- a/test/integration/event-handler-test.js
+++ b/test/integration/event-handler-test.js
@@ -129,3 +129,34 @@ test('async options.transform', t => {
     payload: pushEventPayload
   })
 })
+
+test('returned responses', t => {
+  t.plan(1)
+
+  const eventHandler = new EventHandler()
+
+  function hook1 () {
+    return Promise.resolve()
+      .then(() => ({ a: 1 }))
+  }
+  function hook2 () {
+    return { b: false }
+  }
+  function hook3 () {
+    return undefined
+  }
+
+  eventHandler.on('push', hook1)
+  eventHandler.on('push', hook2)
+  eventHandler.on('push', hook3)
+
+  eventHandler.receive({
+    id: '123',
+    name: 'push',
+    payload: pushEventPayload
+  })
+    .then((responseBody) => {
+      t.ok(responseBody, { a: 1, b: false })
+    })
+    .catch(t.error)
+})
diff --git a/test/unit/event-handler-receive-test.js b/test/unit/event-handler-receive-test.js
index f72ee422..a8e2a177 100644
--- a/test/unit/event-handler-receive-test.js
+++ b/test/unit/event-handler-receive-test.js
@@ -27,3 +27,14 @@ test('options: name, payload', t => {
   })
   t.end()
 })
+
+test('receive: use returned body for response', t => {
+  const responseState = {
+    secret: 'mysecret',
+    hooks: {
+      'a.b': () => ({ a: 'b' })
+    }
+  }
+  t.resolveMatch(receive(responseState, { name: 'a.b', payload: {} }), { a: 'b' })
+  t.end()
+})