diff --git a/.github/workflows/commitlint.yml b/.github/workflows/commitlint.yml
index 14a08fc..c2a9bf6 100644
--- a/.github/workflows/commitlint.yml
+++ b/.github/workflows/commitlint.yml
@@ -11,7 +11,7 @@ jobs:
     env:
       PR_TITLE: ${{ github.event.pull_request.title }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-node@v4
         with:
           node-version: '20'
diff --git a/.github/workflows/publish-sdist.yml b/.github/workflows/publish-sdist.yml
index 362a947..615c83a 100644
--- a/.github/workflows/publish-sdist.yml
+++ b/.github/workflows/publish-sdist.yml
@@ -10,7 +10,7 @@ jobs:
     name: Build and publish on PyPI
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python 3.10
         uses: actions/setup-python@v5
         with:
diff --git a/.github/workflows/run-tox.yml b/.github/workflows/run-tox.yml
index 91fd298..13fe1e9 100644
--- a/.github/workflows/run-tox.yml
+++ b/.github/workflows/run-tox.yml
@@ -22,7 +22,7 @@ jobs:
             min_versions: "min_versions"
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5
       with:
diff --git a/bluepyparallel/parallel.py b/bluepyparallel/parallel.py
index 9b0f9df..8596ba5 100644
--- a/bluepyparallel/parallel.py
+++ b/bluepyparallel/parallel.py
@@ -332,7 +332,7 @@ def __init__(
         if self.interactive:
             self.nb_processes = len(self.client.scheduler_info()["workers"])
         else:  # pragma: no cover
-            from mpi4py import MPI  # pylint: disable=import-outside-toplevel
+            from mpi4py import MPI  # pylint: disable=import-outside-toplevel,no-name-in-module
 
             comm = MPI.COMM_WORLD  # pylint: disable=c-extension-no-member
             self.nb_processes = comm.Get_size()