diff --git a/.github/workflows/python-linux.yml b/.github/workflows/python-linux.yml
index 2f69cdaccd..d0f8520ec5 100644
--- a/.github/workflows/python-linux.yml
+++ b/.github/workflows/python-linux.yml
@@ -51,11 +51,11 @@ jobs:
       - name: Run the tests
         if: ${{ matrix.python-version != 'pypy-3.7' }}
         run: |
-          pytest -vv jupyter_server --cov jupyter_server --cov-branch --cov-report term-missing:skip-covered
+          pytest -vv jupyter_server --cov jupyter_server --cov-branch --cov-report term-missing:skip-covered --doctest-modules
       - name: Run the tests on pypy
         if: ${{ matrix.python-version == 'pypy-3.7' }}
         run: |
-          pytest -vv jupyter_server
+          pytest -vv jupyter_server --doctest-modules
       - name: Install the Python dependencies for the examples
         run: |
           cd examples/simple && pip install -e .
diff --git a/.github/workflows/python-macos.yml b/.github/workflows/python-macos.yml
index 14f24c4318..7831d63422 100644
--- a/.github/workflows/python-macos.yml
+++ b/.github/workflows/python-macos.yml
@@ -27,11 +27,11 @@ jobs:
       - name: Run the tests
         if: ${{ !startsWith( matrix.python-version, 'pypy' ) }}
         run: |
-          pytest -vv jupyter_server --cov jupyter_server --cov-branch --cov-report term-missing:skip-covered
+          pytest -vv jupyter_server --cov jupyter_server --cov-branch --cov-report term-missing:skip-covered --doctest-modules
       - name: Run the tests on pypy
         if: ${{ startsWith( matrix.python-version, 'pypy' ) }}
         run: |
-          pytest -vv jupyter_server
+          pytest -vv jupyter_server --doctest-modules
       - name: Install the Python dependencies for the examples
         run: |
           cd examples/simple && pip install -e .
diff --git a/.github/workflows/python-windows.yml b/.github/workflows/python-windows.yml
index a9e1c7c467..fad3236931 100644
--- a/.github/workflows/python-windows.yml
+++ b/.github/workflows/python-windows.yml
@@ -31,7 +31,7 @@ jobs:
           # the file descriptions opened by the asyncio IOLoop.
           # This leads to a nasty, flaky race condition that we haven't
           # been able to solve.
-          pytest -vv -s jupyter_server
+          pytest -vv -s jupyter_server --doctest-modules
       - name: Install the Python dependencies for the examples
         run: |
           cd examples/simple && pip install -e .
diff --git a/pyproject.toml b/pyproject.toml
index 12b2e02174..bd172c53cf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,6 @@ factory = "jupyter_packaging.npm_builder"
 ignore = ["tbump.toml", ".*", "*.yml", "package-lock.json", "bootstrap*", "conftest.py"]
 
 [tool.pytest.ini_options]
-addopts = "--doctest-modules"
 testpaths = [
     "jupyter_server/"
 ]