diff --git a/packages/ecs-helpers/CHANGELOG.md b/packages/ecs-helpers/CHANGELOG.md
index 89e0ce2..9843048 100644
--- a/packages/ecs-helpers/CHANGELOG.md
+++ b/packages/ecs-helpers/CHANGELOG.md
@@ -1,5 +1,21 @@
 # @elastic/ecs-helpers Changelog
 
+## v2.1.0
+
+- Bump the `ecs.version` from "1.6.0" to "8.10.0".
+  (https://github.com/elastic/ecs-logging-nodejs/issues/133)
+
+- `formatHttpRequest()` will now attempt to determine request ID and add it
+  to the [`http.request.id` field](https://www.elastic.co/guide/en/ecs/current/ecs-http.html#field-http-request-id).
+  This first attempts `req.id` (Fastify, express-request-id), `req.id()`
+  (Restify), and then falls back to the `request-id` or `x-request-id` headers.
+  (https://github.com/elastic/ecs-logging-nodejs/issues/76)
+
+  Note: In previous versions a `req.id` value would be added to the `event.id`
+  field. This has been removed. Please [open an issue](https://github.com/elastic/ecs-logging-nodejs/issues/new)
+  if this impacts you.
+
+
 ## v2.0.0
 
 - [Breaking change.] Drop the `serialize` method. Serialization will move to
diff --git a/packages/ecs-helpers/lib/http-formatters.js b/packages/ecs-helpers/lib/http-formatters.js
index 4579974..71f295d 100644
--- a/packages/ecs-helpers/lib/http-formatters.js
+++ b/packages/ecs-helpers/lib/http-formatters.js
@@ -17,6 +17,14 @@
 
 'use strict'
 
+// Likely HTTP request header names that would include a request ID value,
+// drawn from Fastify's [`requestIdHeader`](https://fastify.dev/docs/latest/Reference/Server/#requestidheader)
+// default, Restify's defaults (https://github.com/restify/node-restify/blob/9f1d249/lib/plugins/pre/reqIdHeaders.js#L5).
+const REQUEST_ID_HEADERS = [
+  'request-id',
+  'x-request-id'
+]
+
 // Write ECS fields for the given HTTP request (expected to be
 // `http.IncomingMessage`-y) into the `ecs` object. This returns true iff
 // the given `req` was a request object it could process.
@@ -36,7 +44,6 @@ function formatHttpRequest (ecs, req) {
   }
 
   const {
-    id,
     method,
     url,
     headers,
@@ -45,11 +52,6 @@ function formatHttpRequest (ecs, req) {
     socket
   } = req
 
-  if (id) {
-    ecs.event = ecs.event || {}
-    ecs.event.id = id
-  }
-
   ecs.http = ecs.http || {}
   ecs.http.version = httpVersion
   ecs.http.request = ecs.http.request || {}
@@ -114,6 +116,39 @@ function formatHttpRequest (ecs, req) {
     }
   }
 
+  // Attempt to set `http.request.id` field from well-known web framework APIs
+  // or from some likely headers.
+  // Note: I'm not sure whether to include Hapi's `request.info.id` generated
+  // value (https://hapi.dev/api/?v=21.3.2#-requestinfo). IIUC it does NOT
+  // consider an incoming header.
+  let id = null
+  switch (typeof (req.id)) {
+    case 'string':
+      // Fastify https://fastify.dev/docs/latest/Reference/Request/, also
+      // Express if using https://www.npmjs.com/package/express-request-id.
+      id = req.id
+      break
+    case 'number':
+      id = req.id.toString()
+      break
+    case 'function':
+      // Restify http://restify.com/docs/request-api/#id
+      id = req.id()
+      break
+  }
+  if (!id && hasHeaders) {
+    for (let i = 0; i < REQUEST_ID_HEADERS.length; i++) {
+      const k = REQUEST_ID_HEADERS[i]
+      if (headers[k]) {
+        id = headers[k]
+        break
+      }
+    }
+  }
+  if (id) {
+    ecs.http.request.id = id
+  }
+
   return true
 }
 
diff --git a/packages/ecs-helpers/lib/index.js b/packages/ecs-helpers/lib/index.js
index 4acad01..b842d4c 100644
--- a/packages/ecs-helpers/lib/index.js
+++ b/packages/ecs-helpers/lib/index.js
@@ -21,7 +21,7 @@ const errorFormatters = require('./error-formatters')
 const httpFormatters = require('./http-formatters')
 
 module.exports = {
-  version: '1.6.0',
+  version: '8.10.0',
   ...errorFormatters,
   ...httpFormatters
 }
diff --git a/packages/ecs-helpers/package.json b/packages/ecs-helpers/package.json
index e36277d..bd68bda 100644
--- a/packages/ecs-helpers/package.json
+++ b/packages/ecs-helpers/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@elastic/ecs-helpers",
-  "version": "2.0.0",
+  "version": "2.1.0",
   "description": "ecs-logging-nodejs helpers",
   "main": "lib/index.js",
   "files": [
diff --git a/packages/ecs-helpers/test/express.test.js b/packages/ecs-helpers/test/express.test.js
index fa651d8..92a333e 100644
--- a/packages/ecs-helpers/test/express.test.js
+++ b/packages/ecs-helpers/test/express.test.js
@@ -31,7 +31,7 @@ test('express res/req serialization', t => {
   const app = express()
   let server
 
-  app.get('/', (req, res) => {
+  app.get('/apath', (req, res) => {
     const rec = {}
 
     res.setHeader('Foo', 'Bar')
@@ -45,17 +45,20 @@ test('express res/req serialization', t => {
 
     t.same(rec.user_agent, { original: 'cool-agent' })
     t.same(rec.url, {
-      path: '/',
-      full: `http://127.0.0.1:${server.address().port}/`,
+      full: `http://127.0.0.1:${server.address().port}/apath?aquery`,
+      path: '/apath',
+      query: 'aquery',
       domain: '127.0.0.1'
     })
     t.same(rec.http, {
       version: '1.1',
       request: {
+        id: 'arequestid',
         method: 'GET',
         headers: {
           'user-agent': 'cool-agent',
           host: `127.0.0.1:${server.address().port}`,
+          'x-request-id': 'arequestid',
           connection: 'close'
         }
       },
@@ -78,9 +81,13 @@ test('express res/req serialization', t => {
   app.listen(0, '127.0.0.1', function () {
     server = this
     const req = http.get(
-      `http://127.0.0.1:${server.address().port}/`,
+      `http://127.0.0.1:${server.address().port}/apath?aquery#ahash`,
       {
-        headers: { 'user-agent': 'cool-agent', connection: 'close' }
+        headers: {
+          'user-agent': 'cool-agent',
+          connection: 'close',
+          'x-request-id': 'arequestid'
+        }
       },
       function (res) {
         res.on('data', function () {})
@@ -91,6 +98,6 @@ test('express res/req serialization', t => {
         })
       }
     )
-    req.on('error', t.ifErr)
+    req.on('error', t.error)
   })
 })
diff --git a/packages/ecs-helpers/test/hapi.test.js b/packages/ecs-helpers/test/hapi.test.js
index 29ea5a3..1fc98e5 100644
--- a/packages/ecs-helpers/test/hapi.test.js
+++ b/packages/ecs-helpers/test/hapi.test.js
@@ -65,8 +65,10 @@ test('hapi res/req serialization', testOpts, t => {
         headers: {
           'user-agent': 'cool-agent',
           host: `127.0.0.1:${server.info.port}`,
-          connection: 'close'
-        }
+          connection: 'close',
+          'request-id': 'arequestid'
+        },
+        id: 'arequestid'
       },
       response: {
         status_code: 200,
@@ -98,8 +100,16 @@ test('hapi res/req serialization', testOpts, t => {
     t.comment('hapi server running on %s', server.info.uri)
 
     // Make a request so we trigger a 'response' event above.
-    const req = http.get(`http://127.0.0.1:${server.info.port}/`,
-      { headers: { 'user-agent': 'cool-agent', connection: 'close' } })
+    const req = http.get(
+      `http://127.0.0.1:${server.info.port}/`,
+      {
+        headers: {
+          'user-agent': 'cool-agent',
+          connection: 'close',
+          'request-id': 'arequestid'
+        }
+      }
+    )
     req.on('error', t.ifErr)
   })
 })
diff --git a/packages/ecs-morgan-format/CHANGELOG.md b/packages/ecs-morgan-format/CHANGELOG.md
index c790cf6..16a8ea9 100644
--- a/packages/ecs-morgan-format/CHANGELOG.md
+++ b/packages/ecs-morgan-format/CHANGELOG.md
@@ -6,6 +6,8 @@
   protects against circular references and bigints.
   (https://github.com/elastic/ecs-logging-nodejs/pull/155)
 
+- Set `http.request.id` field (see [ecs-helpers CHANGELOG](../ecs-helpers/CHANGELOG.md#v210)).
+
 ## v1.4.0
 
 - Add `service.version`, `service.environment`, and `service.node.name` log
diff --git a/packages/ecs-pino-format/CHANGELOG.md b/packages/ecs-pino-format/CHANGELOG.md
index 93f996f..7cf3e36 100644
--- a/packages/ecs-pino-format/CHANGELOG.md
+++ b/packages/ecs-pino-format/CHANGELOG.md
@@ -6,6 +6,8 @@
   `fast-safe-stringify` lib that resulted in a maintenance warning about
   the `string-similarity` transitive dep.
 
+- Set `http.request.id` field (see [ecs-helpers CHANGELOG](../ecs-helpers/CHANGELOG.md#v210)).
+
 ## v1.4.0
 
 - Add `service.version`, `service.environment`, and `service.node.name` log
diff --git a/packages/ecs-pino-format/README.md b/packages/ecs-pino-format/README.md
index 91f8dfb..2d64d18 100644
--- a/packages/ecs-pino-format/README.md
+++ b/packages/ecs-pino-format/README.md
@@ -41,8 +41,8 @@ child.warn('From child')
 Running this will produce log output similar to the following:
 
 ```sh
-{"log.level":"info","@timestamp":"2023-10-16T18:08:02.601Z","process.pid":74325,"host.hostname":"pink.local","ecs.version":"1.6.0","message":"Hello world"}
-{"log.level":"warn","@timestamp":"2023-10-16T18:08:02.602Z","process.pid":74325,"host.hostname":"pink.local","ecs.version":"1.6.0","module":"foo","message":"From child"}
+{"log.level":"info","@timestamp":"2023-10-16T18:08:02.601Z","process.pid":74325,"host.hostname":"pink.local","ecs.version":"8.10.0","message":"Hello world"}
+{"log.level":"warn","@timestamp":"2023-10-16T18:08:02.602Z","process.pid":74325,"host.hostname":"pink.local","ecs.version":"8.10.0","module":"foo","message":"From child"}
 ```
 
 Please see the [Node.js ECS pino documentation](https://www.elastic.co/guide/en/ecs-logging/nodejs/current/pino.html) for more.
diff --git a/packages/ecs-pino-format/package.json b/packages/ecs-pino-format/package.json
index 96acc77..fe0fb60 100644
--- a/packages/ecs-pino-format/package.json
+++ b/packages/ecs-pino-format/package.json
@@ -39,7 +39,7 @@
     "node": ">=10"
   },
   "dependencies": {
-    "@elastic/ecs-helpers": "^2.0.0"
+    "@elastic/ecs-helpers": "^2.1.0"
   },
   "devDependencies": {
     "@types/pino": "^6.3.9",
diff --git a/packages/ecs-winston-format/CHANGELOG.md b/packages/ecs-winston-format/CHANGELOG.md
index a3aa0d7..3aec43a 100644
--- a/packages/ecs-winston-format/CHANGELOG.md
+++ b/packages/ecs-winston-format/CHANGELOG.md
@@ -91,6 +91,8 @@
   mechanism.
   (https://github.com/elastic/ecs-logging-nodejs/issues/108)
 
+- Set `http.request.id` field (see [ecs-helpers CHANGELOG](../ecs-helpers/CHANGELOG.md#v210)).
+
 ## v1.4.0
 
 - Add `service.version`, `service.environment`, and `service.node.name` log
diff --git a/packages/ecs-winston-format/README.md b/packages/ecs-winston-format/README.md
index 17bf5c3..2702a02 100644
--- a/packages/ecs-winston-format/README.md
+++ b/packages/ecs-winston-format/README.md
@@ -46,8 +46,8 @@ Running this script will produce log output similar to the following:
 
 ```sh
 % node examples/basic.js
-{"@timestamp":"2021-01-13T21:32:38.095Z","log.level":"info","message":"hi","ecs":{"version":"1.6.0"}}
-{"@timestamp":"2021-01-13T21:32:38.096Z","log.level":"error","message":"oops there is a problem","ecs":{"version":"1.6.0"},"foo":"bar"}
+{"@timestamp":"2021-01-13T21:32:38.095Z","log.level":"info","message":"hi","ecs":{"version":"8.10.0"}}
+{"@timestamp":"2021-01-13T21:32:38.096Z","log.level":"error","message":"oops there is a problem","ecs":{"version":"8.10.0"},"foo":"bar"}
 ```
 
 Please see the [Node.js ECS winston documentation](https://www.elastic.co/guide/en/ecs-logging/nodejs/current/winston.html) for more.