diff --git a/.github/workflows/test_on_push.yaml b/.github/workflows/test_on_push.yaml
index 06788ba7c..7b6c6f739 100644
--- a/.github/workflows/test_on_push.yaml
+++ b/.github/workflows/test_on_push.yaml
@@ -99,6 +99,7 @@ jobs:
           sudo apt-get install -y libopenblas-dev
           python -m nox -s pybamm-requires
           python -m pip install .[all]
+          rm -rf pybind11/
           cd ..
 
       - name: Run coverage tests for Ubuntu with Python 3.11 and generate report
diff --git a/conftest.py b/conftest.py
index c632f3e50..5fc769a9e 100644
--- a/conftest.py
+++ b/conftest.py
@@ -5,6 +5,9 @@
 plotly.io.renderers.default = None
 matplotlib.use("Template")
 
+# Ignore the pybamm/ folder and any subdirectories from test discovery
+collect_ignore = ["pybamm/"]
+
 
 def pytest_addoption(parser):
     parser.addoption(