diff --git a/.github/workflows/unittest-flux-openmpi.yml b/.github/workflows/unittest-flux-openmpi.yml
index eb84218d..cac3cbf5 100644
--- a/.github/workflows/unittest-flux-openmpi.yml
+++ b/.github/workflows/unittest-flux-openmpi.yml
@@ -40,5 +40,6 @@ jobs:
         coverage xml
       env:
         PYMPIPOOL_PMIX: "pmix"
+        TMPDIR: "/tmp"   # required by MacOs https://github.com/open-mpi/ompi/issues/7393
     - name: Coveralls
       uses: coverallsapp/github-action@v2
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index a298609b..b8a348b7 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.4.7
+    rev: v0.4.8
     hooks:
       - id: ruff
         name: ruff lint