diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index d6fa1d1..63016d0 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -32,7 +32,7 @@
          ]
          include:
            - environment-file: ci/py312-latest.yaml
-             os: macos-latest
+             os: macos-13 # Intel
            - environment-file: ci/py312-latest.yaml
              os: macos-14 # Apple Silicon
            - environment-file: ci/py312-latest.yaml
@@ -72,8 +72,17 @@
            --cov-append \
            --cov-report term-missing \
            --cov-report xml . \
-           --doctest-modules
-       
+
+       - name: run doctests (dev only)
+         if: contains(matrix.env, "dev")
+         run: |
+           pytest \
+           fastpair/ \
+           --verbose \
+           -r a \
+           --color yes \
+           --doctest-only
+
        - name: codecov
          uses: codecov/codecov-action@v4
          with:
diff --git a/ci/py312-dev.yaml b/ci/py312-dev.yaml
index 65996a7..8e2221d 100644
--- a/ci/py312-dev.yaml
+++ b/ci/py312-dev.yaml
@@ -8,6 +8,7 @@ dependencies:
   # testing
   - pytest
   - pytest-cov
+  - pytest-doctestplus
   - pip:
     # nightly builds
     - --pre \
diff --git a/pyproject.toml b/pyproject.toml
index 39ef5a3..0ac6a18 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -49,6 +49,7 @@ tests = [
     "pre-commit",
     "pytest",
     "pytest-cov",
+    "pytest-doctestplus",
     "ruff",
     "setuptools_scm",
 ]