diff --git a/.github/workflows/regression-tests.yml b/.github/workflows/regression-tests.yml
index 600a752..a5ac86f 100644
--- a/.github/workflows/regression-tests.yml
+++ b/.github/workflows/regression-tests.yml
@@ -5,17 +5,17 @@ on: [push, pull_request]
 jobs:
   build:
     name: Python ${{matrix.python-version}}
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     
     strategy:
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v4
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
 
diff --git a/README.md b/README.md
index c21d08f..9cd81b9 100644
--- a/README.md
+++ b/README.md
@@ -42,13 +42,13 @@ To use these modules, import the one you need and connect it to the DUT:
 
 To send data into a design with a `UartSource`, call `write()` or `write_nowait()`.  Accepted data types are iterables of ints, including lists, bytes, bytearrays, etc.  Optionally, call `wait()` to wait for the transmit operation to complete.  Example:
 
-    await uart_source.send(b'test data')
+    await uart_source.write(b'test data')
     # wait for operation to complete (optional)
     await uart_source.wait()
 
 To receive data with a `UartSink`, call `read()` or `read_nowait()`.  Optionally call `wait()` to wait for new receive data.  `read()` will block until at least 1 data byte is available.  Both `read()` and `read_nowait()` will return up to _count_ bytes from the receive queue, or the entire contents of the receive queue if not specified.
 
-    data = await uart_sink.recv()
+    data = await uart_sink.read()
 
 #### Constructor parameters:
 
diff --git a/cocotbext/uart/uart.py b/cocotbext/uart/uart.py
index c64e603..d6dd0f5 100644
--- a/cocotbext/uart/uart.py
+++ b/cocotbext/uart/uart.py
@@ -65,7 +65,7 @@ def __init__(self, data, baud=9600, bits=8, stop_bits=1, *args, **kwargs):
     def _restart(self):
         if self._run_cr is not None:
             self._run_cr.kill()
-        self._run_cr = cocotb.fork(self._run(self._data, self._baud, self._bits, self._stop_bits))
+        self._run_cr = cocotb.start_soon(self._run(self._data, self._baud, self._bits, self._stop_bits))
 
     @property
     def baud(self):
@@ -182,7 +182,7 @@ def __init__(self, data, baud=9600, bits=8, stop_bits=1, *args, **kwargs):
     def _restart(self):
         if self._run_cr is not None:
             self._run_cr.kill()
-        self._run_cr = cocotb.fork(self._run(self._data, self._baud, self._bits, self._stop_bits))
+        self._run_cr = cocotb.start_soon(self._run(self._data, self._baud, self._bits, self._stop_bits))
 
     @property
     def baud(self):
diff --git a/setup.cfg b/setup.cfg
index 5d067e4..051366a 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 # package information
 [metadata]
-name = cocotbext-uart
+name = cocotbext_uart
 version = attr: cocotbext.uart.version.__version__
 description = UART modules for cocotb
 keywords = uart, cocotb
@@ -25,7 +25,7 @@ classifiers =
 
 [options]
 packages = find_namespace:
-python_requires = >=3.6
+python_requires = >=3.7
 install_requires =
     cocotb
 
@@ -46,14 +46,16 @@ addopts =
 
 # tox configuration
 [tox:tox]
-envlist = py36, py37, py38, py39
+envlist = py38, py39, py310, py311, py312, py313
 
 [gh-actions]
 python =
-    3.6: py36
-    3.7: py37
     3.8: py38
     3.9: py39
+    3.10: py310
+    3.11: py311
+    3.12: py312S
+    3.13: py313
 
 [testenv]
 setenv =
@@ -70,7 +72,7 @@ commands =
     pytest --cov=cocotbext --cov=tests --cov-branch -n auto
     bash -c 'find . -type f -name "\.coverage" | xargs coverage combine --append'
 
-whitelist_externals =
+allowlist_externals =
     bash
 
 # combine if paths are different
@@ -82,4 +84,4 @@ source =
 # do not report dependencies
 [coverage:report]
 omit = 
-   .tox/*
\ No newline at end of file
+   .tox/*