diff --git a/package.json b/package.json
index 20e567454..d54377a55 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "lint": "eslint .",
     "test": "npm run lint && tap test/*test.js test/*/*test.js && npm run test-types",
     "test-ci": "npm run lint && tap --no-check-coverage test/*test.js test/*/*test.js --coverage-report=lcovonly && npm run test-types",
-    "test-types": "tsc && tsd",
+    "test-types": "tsc && tsd && ts-node test/types/pino.ts",
     "cov-ui": "tap --coverage-report=html test/*test.js test/*/*test.js",
     "bench": "node benchmarks/utils/runbench all",
     "bench-basic": "node benchmarks/utils/runbench basic",
@@ -64,7 +64,7 @@
   },
   "homepage": "http://getpino.io",
   "devDependencies": {
-    "@types/node": "^15.3.0",
+    "@types/node": "^15.14.1",
     "airtap": "4.0.3",
     "benchmark": "^2.1.4",
     "bole": "^4.0.0",
@@ -81,7 +81,7 @@
     "import-fresh": "^3.2.1",
     "log": "^6.0.0",
     "loglevel": "^1.6.7",
-    "pino-pretty": "^5.0.0",
+    "pino-pretty": "^5.1.0",
     "pre-commit": "^1.2.2",
     "proxyquire": "^2.1.3",
     "pump": "^3.0.0",
@@ -92,8 +92,9 @@
     "tap": "^15.0.1",
     "tape": "^5.0.0",
     "through2": "^4.0.0",
-    "tsd": "^0.15.1",
-    "typescript": "^4.2.4",
+    "ts-node": "^10.0.0",
+    "tsd": "^0.17.0",
+    "typescript": "^4.3.5",
     "winston": "^3.3.3"
   },
   "dependencies": {
@@ -103,7 +104,7 @@
     "pino-abstract-transport": "^0.2.0",
     "pino-std-serializers": "^4.0.0",
     "quick-format-unescaped": "^4.0.3",
-    "sonic-boom": "^2.0.1",
+    "sonic-boom": "^2.1.0",
     "thread-stream": "^0.10.0"
   },
   "tsd": {
diff --git a/pino.d.ts b/pino.d.ts
index 4f1c4fa58..8964d01f1 100644
--- a/pino.d.ts
+++ b/pino.d.ts
@@ -21,7 +21,8 @@
 import { EventEmitter } from "events";
 import { SonicBoom } from "sonic-boom";
 import * as pinoStdSerializers from "pino-std-serializers";
-import {WriteStream} from "fs";
+import { WriteStream } from "fs";
+import { WorkerOptions } from "worker_threads";
 
 export default P;
 export { P as pino }
@@ -200,6 +201,32 @@ declare namespace P {
         dest?: string | number | DestinationObjectOptions | DestinationStream | NodeJS.WritableStream,
     ): SonicBoom;
 
+    interface TransportTargetOptions<TransportOptions = Record<string, any>> {
+        target: string
+        options: TransportOptions
+        level: LevelWithSilent
+    }
+
+    interface TransportBaseOptions<TransportOptions = Record<string, any>> {
+        options?: TransportOptions
+        worker?: WorkerOptions & { autoEnd?: boolean}
+    }
+
+    interface TransportSingleOptions<TransportOptions = Record<string, any>> extends TransportBaseOptions<TransportOptions>{
+        target: string
+    }
+
+    interface TransportMultiOptions<TransportOptions = Record<string, any>> extends TransportBaseOptions<TransportOptions>{
+        targets: readonly TransportTargetOptions<TransportOptions>[]
+    }
+
+    // ToDo https://github.com/pinojs/thread-stream/issues/24
+    type ThreadStream = any
+
+    function transport<TransportOptions = Record<string, any>>(
+        options: TransportSingleOptions<TransportOptions> | TransportMultiOptions<TransportOptions>
+    ): ThreadStream
+
     interface MultiStreamOptions {
         levels?: Record<string, number>
         dedupe?: boolean
diff --git a/test/types/pino-transport.test-d.ts b/test/types/pino-transport.test-d.ts
new file mode 100644
index 000000000..292b04b92
--- /dev/null
+++ b/test/types/pino-transport.test-d.ts
@@ -0,0 +1,47 @@
+import { pino } from '../../pino'
+
+// Single
+const transport = pino.transport({
+    target: '#pino/pretty',
+    options: { some: 'options for', the: 'transport' }
+})
+pino(transport)
+
+// Multiple
+const transports = pino.transport({targets: [
+    {
+        level: 'info',
+        target: '#pino/pretty',
+        options: { some: 'options for', the: 'transport' }
+    },
+    {
+        level: 'trace',
+        target: '#pino/file',
+        options: { destination: './test.log' }
+    }
+]})
+pino(transports)
+
+type TransportConfig = {
+    id: string
+}
+
+// Custom transport params
+const customTransport = pino.transport<TransportConfig>({
+    target: 'custom',
+    options: { id: 'abc' }
+})
+pino(customTransport)
+
+// Worker
+pino.transport({
+    target: 'custom',
+    worker: {
+        argv: ['a', 'b'],
+        stdin: false,
+        stderr: true,
+        stdout: false,
+        autoEnd: true,
+    },
+    options: { id: 'abc' }
+})
diff --git a/test/types/pino.ts b/test/types/pino.ts
new file mode 100644
index 000000000..ae7fc364d
--- /dev/null
+++ b/test/types/pino.ts
@@ -0,0 +1,40 @@
+import { pino } from '../../pino'
+import { join } from 'path'
+import { tmpdir } from'os'
+
+const destination = join(
+    tmpdir(),
+    '_' + Math.random().toString(36).substr(2, 9)
+)
+
+// Single
+const transport = pino.transport({
+    target: '#pino/pretty',
+    options: { some: 'options for', the: 'transport' }
+})
+const logger = pino(transport)
+logger.info('test2')
+
+const transport2 = pino.transport({
+    target: '#pino/pretty',
+})
+const logger2 = pino(transport2)
+logger2.info('test2')
+
+
+// Multiple
+
+const transports = pino.transport({targets: [
+    {
+        level: 'info',
+        target: '#pino/pretty',
+        options: { some: 'options for', the: 'transport' }
+    },
+    {
+        level: 'trace',
+        target: '#pino/file',
+        options: { destination }
+    }
+]})
+const loggerMulti = pino(transports)
+loggerMulti.info('test2')