diff --git a/.github/workflows/testslurm.yml b/.github/workflows/testslurm.yml
index dd4d153e60..e4f4bddec2 100644
--- a/.github/workflows/testslurm.yml
+++ b/.github/workflows/testslurm.yml
@@ -8,9 +8,13 @@ on:
 
 jobs:
   build:
+    strategy:
+      matrix:
+        python-version: [3.8.16, 3.9.16, 3.10.9, 3.11.5]
+      fail-fast: false
     runs-on: ubuntu-latest
     env:
-      DOCKER_IMAGE: giovtorres/docker-centos7-slurm:latest
+      DOCKER_IMAGE: adi611/docker-centos7-slurm:23.02.1
 
     steps:
     - name: Disable etelemetry
@@ -24,10 +28,7 @@ jobs:
     - name: Display previous jobs with sacct
       run: |
         echo "Allowing ports/daemons time to start" && sleep 10
-        docker exec slurm bash -c "sacctmgr -i add cluster name=linux \
-          && supervisorctl restart slurmdbd \
-          && supervisorctl restart slurmctld \
-          && sacctmgr -i add account none,test Cluster=linux Description='none' Organization='none'"
+        docker exec slurm bash -c "sacctmgr -i add account none,test Cluster=linux Description='none' Organization='none'"
         docker exec slurm bash -c "sacct && sinfo && squeue" 2&> /dev/null
         if [ $? -ne 0 ]; then
             echo "Slurm docker image error"
@@ -38,12 +39,16 @@ jobs:
         docker exec slurm bash -c "echo $NO_ET"
         docker exec slurm bash -c "ls -la && echo list top level dir"
         docker exec slurm bash -c "ls -la /pydra && echo list pydra dir"
-        docker exec slurm bash -c "pip3.9 install --upgrade pip && pip3.9 install -e /pydra[test] && python3.9 -c 'import pydra; print(pydra.__version__)'"
+        if [[ "${{ matrix.python-version }}" == "3.11.5" ]]; then
+            docker exec slurm bash -c "CONFIGURE_OPTS=\"-with-openssl=/opt/openssl\" pyenv install -v 3.11.5"
+        fi
+        docker exec slurm bash -c "pyenv global ${{ matrix.python-version }}"
+        docker exec slurm bash -c "pip install --upgrade pip && pip install -e /pydra[test] && python -c 'import pydra; print(pydra.__version__)'"
     - name: Run pytest
       run: |
-        docker exec slurm bash -c "pytest --color=yes -vs -n auto --cov pydra --cov-config /pydra/.coveragerc --cov-report xml:/pydra/cov.xml --doctest-modules /pydra/pydra/ -k 'not test_audit_prov and not test_audit_prov_messdir_1 and not test_audit_prov_messdir_2 and not test_audit_prov_wf and not test_audit_all'"
+        docker exec slurm bash -c "pytest --color=yes -vs --cov pydra --cov-config /pydra/.coveragerc --cov-report xml:/pydra/cov.xml --doctest-modules /pydra/pydra/ -k 'not test_audit_prov and not test_audit_prov_messdir_1 and not test_audit_prov_messdir_2 and not test_audit_prov_wf and not test_audit_all'"
     - name: Upload to codecov
       run: |
-        docker exec slurm bash -c "pip3.9 install urllib3==1.26.6"
+        docker exec slurm bash -c "pip install urllib3==1.26.6"
         docker exec slurm bash -c "codecov --root /pydra -f /pydra/cov.xml -F unittests"
         docker rm -f slurm
diff --git a/pyproject.toml b/pyproject.toml
index 188a219ea8..e40b98f693 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ build-backend = "flit_scm:buildapi"
 name = "pydra"
 description = "Pydra dataflow engine"
 readme = "README.rst"
-requires-python = ">=3.8"
+requires-python = ">=3.8, !=3.11.1"
 dependencies = [
     "attrs >=19.1.0",
     "cloudpickle >=2.0.0",