diff --git a/README.md b/README.md
index 7d70507..a107af1 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ into your Arduino IDE, the project can be found here: https://github.com/jprodge
 
 Use the Arduino IDE to upload the code from the `arduino/rti_py` directory to the Ardunio Uno in the usual way.
 
-To install the Python script needed to communicate with the Arduino board first install `Python 3.6` and `pipenv` as
+To install the Python script needed to communicate with the Arduino board first install `Python 3.8` and `pipenv` as
 per your computer's OS.
 
 **N.B.** Only Linux or MacOS are currently supported by this project.
diff --git a/rti_py.py b/rti_py.py
index c65d0cf..00cf477 100644
--- a/rti_py.py
+++ b/rti_py.py
@@ -48,6 +48,8 @@ def get_serial_port() -> Optional[str]:
         return "/dev/" + os.popen("dmesg | egrep ttyACM | cut -f3 -d: | tail -n1").read().strip()
     elif sys.platform == "darwin":
         return "/dev/cu.usbmodem1411"
+    elif sys.platform == "win32":
+        return "COM3"
 
     return None