diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b0a2cf9d..d7331c75 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,10 +28,15 @@ jobs:
         sudo apt install libev-dev libevent-dev
         sudo apt install gcc make libffi-dev pkg-config zlib1g-dev libbz2-dev libsqlite3-dev libncurses5-dev libexpat1-dev libssl-dev libgdbm-dev tk-dev libgc-dev python-cffi liblzma-dev libncursesw5-dev
         sudo ldconfig
-    - name: Install test dependencies
-      run: pip install tox coveralls
+
+    - name: Install uv
+      run: pip install uv
+
+    - name: Install Python package and test dependencies
+      run: uv pip install .[test] && uv pip freeze
+
     - name: Run test suite
-      run: tox -v -e py
+      run: pytest
 
 
   multi-os:
@@ -56,11 +61,13 @@ jobs:
       with:
         python-version: '3.8'
 
-    - name: Install test dependencies
-      run: |
-        pip install tox coveralls
+    - name: Install uv
+      run: pip install uv
+
+    - name: Install Python package and test dependencies
+      run: uv pip install .[test] && uv pip freeze
 
     - name: Run test suite
       shell: bash -l {0}
-      run: tox -v -e py
+      run: pytest
       continue-on-error: ${{ matrix.skip-tests }}
diff --git a/tests/test_stdin_socket.py b/tests/test_stdin_socket.py
index da8efba5..74672873 100644
--- a/tests/test_stdin_socket.py
+++ b/tests/test_stdin_socket.py
@@ -2,6 +2,7 @@
 import tornado
 import time
 import socket
+import subprocess
 
 from tests.support import TestCircus, TimeoutException
 from tests.support import skipIf, IS_WINDOWS
@@ -18,7 +19,7 @@ def run_process(test_file):
     return 1
 
 
-@tornado.testing.gen_test
+@tornado.gen.coroutine
 def read_from_stream(stream, timeout=5):
     start = time.time()
     while time.time() - start < timeout:
@@ -63,7 +64,7 @@ def test_stdin_socket_missing_raises(self):
         try:
             # expecting exception for no such socket
             yield self.start_arbiter(stdin_socket='test')
-        except Exception:
+        except subprocess.SubprocessError:
             raised = True
         self.assertTrue(raised)