diff --git a/.github/conda-env/doctest-env.yml b/.github/conda-env/doctest-env.yml
index a03b64ae7..4c0d36728 100644
--- a/.github/conda-env/doctest-env.yml
+++ b/.github/conda-env/doctest-env.yml
@@ -7,7 +7,7 @@ dependencies:
   - numpy
   - matplotlib
   - scipy
-  - sphinx
+  - sphinx<8.2
   - sphinx_rtd_theme
   - ipykernel
   - nbsphinx
diff --git a/.github/workflows/install_examples.yml b/.github/workflows/install_examples.yml
index cfbf40fe7..6893a99fb 100644
--- a/.github/workflows/install_examples.yml
+++ b/.github/workflows/install_examples.yml
@@ -20,7 +20,8 @@ jobs:
            --quiet --yes \
            python=3.12 pip \
            numpy matplotlib scipy \
-           slycot pmw jupyter
+           slycot pmw jupyter \
+           ipython!=9.0
 
     - name: Install from source
       run: |