diff --git a/README.md b/README.md
index 62cb906a..7a47235f 100644
--- a/README.md
+++ b/README.md
@@ -111,15 +111,15 @@ python3 --version   # should print 3.10 or higher
 Required for the Selenium service to control a browser.
 
 ```sh
-wget -q -O - https://dl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
-echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" | sudo tee /etc/apt/sources.list.d/google-chrome.list
-sudo apt-get update
-sudo apt-get install -y google-chrome-stable
+wget -q https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb -O /tmp/google-chrome-stable.deb
+sudo apt install -y /tmp/google-chrome-stable.deb
 
 # Verify
 google-chrome --version
 ```
 
+> `apt-key` is removed on modern Debian (13+), so the old signing-key + repo method no longer works. `apt install` on the downloaded `.deb` pulls in dependencies automatically.
+
 > The `webdriver-manager` package (included in `requirements.txt`) automatically downloads the matching ChromeDriver — no manual driver setup needed.
 
 ### Step 7 — Install PostgreSQL