diff --git a/README.md b/README.md
index 28682a6d5f..1cd8b01523 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,7 @@ To test with real data run:
 npm run proxy-server http://stable.opencast.org *opencast_digest_username* *opencast_digest_password*
 ```
 
-This will start a proxy server at localhost:5000. It will automatically proxy
+This will start a proxy server at localhost:5001. It will automatically proxy
 requests to an Opencast instance at http://stable.opencast.org. You can change the URL to a different Opencast if you wish (e.g., http://localhost.8080 for
 a local Opencast installation). Note that `http` is required.
 
@@ -70,11 +70,11 @@ not work when using this mode.
 ### Alternative ports
 
 The static file server and the proxy server serve their content
-on the port 5000. If this is used already (as it is on macOS)
+on the port 5001. If this is used already (as it is on macOS)
 you can specify an alternative port in the `PORT` environment variable,
 for example:
 
-    PORT=5001 npm run proxy-server ...
+    PORT=5002 npm run proxy-server ...
 
 Note that you need to specify the same port when running the client,
 this time in the `PROXY_PORT` variable:
diff --git a/app/src/setupProxy.js b/app/src/setupProxy.js
index 693d5a3cb8..25fa6b1697 100644
--- a/app/src/setupProxy.js
+++ b/app/src/setupProxy.js
@@ -1,6 +1,6 @@
 const { createProxyMiddleware } = require("http-proxy-middleware");
 
-const port = process.env.PROXY_PORT || 5000;
+const port = process.env.PROXY_PORT || 5001;
 
 module.exports = function (app) {
     app.use(
diff --git a/proxyServer.js b/proxyServer.js
index a3acf925b6..0dd50056f7 100644
--- a/proxyServer.js
+++ b/proxyServer.js
@@ -4,7 +4,7 @@ const requestDigest = require('request-digest');
 const urlParser = require('url-parse');
 
 const app = express();
-const port = process.env.PORT || 5000;
+const port = process.env.PORT || 5001;
 
 // Get values of proxy host, username and password from npm command
 let args = process.argv,
diff --git a/staticServer.js b/staticServer.js
index 59dcafc16b..3a4a6f1d5c 100644
--- a/staticServer.js
+++ b/staticServer.js
@@ -23,5 +23,5 @@ app.use("/", [
     express.static(path.join(__dirname, "test/app"))
 ]);
 
-const port = process.env.PORT || 5000;
+const port = process.env.PORT || 5001;
 app.listen(port, () => console.log(`Listing on port ${port}`));