diff --git a/.github/workflows/omv-ci.yml b/.github/workflows/omv-ci.yml
index 116a0e1..702c56e 100644
--- a/.github/workflows/omv-ci.yml
+++ b/.github/workflows/omv-ci.yml
@@ -14,15 +14,15 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [ 3.9, "3.11" ]
+        python-version: [ "3.12" ]
         engine: [ jNeuroML, jNeuroML_NEURON, jNeuroML_validate ]
  
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v7
     
     - name: Set up Python  ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v7
       with:
         python-version:  ${{ matrix.python-version }}
         
@@ -30,9 +30,7 @@ jobs:
       run: |
         pip install git+https://github.com/OpenSourceBrain/osb-model-validation
         pip install scipy sympy matplotlib cython pandas tables
-        
-        pip install 'numpy<=1.23.0' # see https://github.com/OpenSourceBrain/osb-model-validation/issues/91
-        
+                
     - name: Run OMV tests on engine ${{ matrix.engine }}
       run: |
         omv all -V --engine=${{ matrix.engine }}