diff --git a/README.md b/README.md
index 1ead4380..99fb27a8 100644
--- a/README.md
+++ b/README.md
@@ -467,7 +467,7 @@ Still in the `gui/` directory, build the UI bundle and run the dev server with N
 
 ### Hosting the client
 
-You should be able to access the web interface at http://127.0.0.1:3000/index.html or your local machine's hostname.
+You should be able to access the web interface at http://127.0.0.1:8000/index.html or your local machine's hostname.
 
 - If you get a `Connection Refused` error, make sure you are using the correct address and the dev server is still running.
 - If you get a `File not found` error, make sure you have built the UI bundle (`make bundle`) and are using the `/index.html` path
diff --git a/docs/user-guide.md b/docs/user-guide.md
index e6d55db9..090adc8b 100644
--- a/docs/user-guide.md
+++ b/docs/user-guide.md
@@ -615,7 +615,7 @@ If you are running the GUI separately, such as when using nginx or for developme
 
 - TCP/80 for the GUI using nginx without a container
 - TCP/8000 for the GUI using the nginx container
-- TCP/3000 for the GUI dev server
+- TCP/8000 for the GUI dev server
 
 #### Error: name 'cmd' is not defined
 
diff --git a/gui/esbuild.js b/gui/esbuild.js
index ae41211b..d81e507a 100644
--- a/gui/esbuild.js
+++ b/gui/esbuild.js
@@ -31,8 +31,8 @@ const config = {
     sourcemap: true,
 };
 
-if(watch) {
-    const copyArray = (files) => files.map(file => 
+if (watch) {
+    const copyArray = (files) => files.map(file =>
         copy({
             resolveFrom: 'cwd',
             assets: {
diff --git a/gui/serve.js b/gui/serve.js
index 9901d88d..7fcfa29e 100644
--- a/gui/serve.js
+++ b/gui/serve.js
@@ -6,7 +6,7 @@ import { join } from 'path';
 const { env } = process;
 
 const host = mustDefault(env.ONNX_WEB_DEV_HOST, '127.0.0.1');
-const port = mustDefault(env.ONNX_WEB_DEV_PORT, '3000');
+const port = mustDefault(env.ONNX_WEB_DEV_PORT, '8000');
 const root = process.cwd();
 
 const portNum = parseInt(port, 10);