diff --git a/.github/workflows/parpe_tests.yml b/.github/workflows/parpe_tests.yml
index f8afe21a..4945bc60 100644
--- a/.github/workflows/parpe_tests.yml
+++ b/.github/workflows/parpe_tests.yml
@@ -124,7 +124,9 @@ jobs:
 
     - name: Run example notebooks
       run: |
-        misc/run_notebook.sh examples/parpeamici/steadystate/parpeExampleSteadystateBasic.ipynb examples/parpeamici/steadystate/parpeExampleSteadystateHierarchical.ipynb
+        misc/run_notebook.sh \
+          examples/parpeamici/steadystate/parpeExampleSteadystateBasic.ipynb \
+          examples/parpeamici/steadystate/parpeExampleSteadystateHierarchical.ipynb
 
     - name: Run valgrind
       run: |
diff --git a/misc/run_notebook.sh b/misc/run_notebook.sh
index ed76f6f6..1c633996 100755
--- a/misc/run_notebook.sh
+++ b/misc/run_notebook.sh
@@ -27,7 +27,7 @@ fi
 
 source "${parpe_path}/build/venv/bin/activate"
 pip3 show ipython \
-  || (pip3 install --upgrade jupyter jupyter_contrib_nbextensions \
+  || (pip3 install --upgrade jupyter \
       && python3 -m ipykernel install --user \
                  --name parpe --display-name "Python (parpe)")