diff --git a/.github/workflows/python-linux.yml b/.github/workflows/python-linux.yml
index ff7e916816..b178640653 100644
--- a/.github/workflows/python-linux.yml
+++ b/.github/workflows/python-linux.yml
@@ -144,7 +144,7 @@ jobs:
           mkdir test
           tar --strip-components=1 -zxvf jupyter_server* -C ./test
           cd test
-          pip install -e .[test]
+          pip install .[test]
           pip install pytest-github-actions-annotate-failures
       - name: Run Test
         run: |
diff --git a/jupyter_server/log.py b/jupyter_server/log.py
index 0f21185b31..d23799456d 100644
--- a/jupyter_server/log.py
+++ b/jupyter_server/log.py
@@ -52,7 +52,7 @@ def log_request(handler):
     if status >= 500 and status != 502:
         # Log a subset of the headers if it caused an error.
         headers = {}
-        for header in ['Host', 'Accept', 'Referer', 'User-Agent']:
+        for header in ["Host", "Accept", "Referer", "User-Agent"]:
             if header in request.headers:
                 headers[header] = request.headers[header]
         log_method(json.dumps(headers, indent=2))
diff --git a/tests/extension/test_launch.py b/tests/extension/test_launch.py
index e5cc12e7a7..c0969356fe 100644
--- a/tests/extension/test_launch.py
+++ b/tests/extension/test_launch.py
@@ -57,17 +57,19 @@ def _kill_extension_app():
         if add_token:
             f'--ServerApp.token="{token}"',
 
+        root = Path(HERE).parent.parent
+
         process = subprocess.Popen(
             [
                 sys.executable,
                 "-m",
-                "mockextensions.app",
+                "tests.extension.mockextensions.app",
                 f"--port={port}",
                 "--ip=127.0.0.1",
                 "--no-browser",
                 *argv,
             ],
-            cwd=HERE,
+            cwd=str(root),
         )
 
         request.addfinalizer(_kill_extension_app)