diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 372523e..bd75b28 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -13,14 +13,17 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11"]
+        python-version: ["3.9", "3.10", "3.11", "3.12" ]
+        numpy-version: [ "numpy<2.0", "numpy>=2.0" ]
+
 
     steps:
     - uses: actions/checkout@v3
-    - name: Set up Python ${{ matrix.python-version }}
+    - name: Set up Python ${{ matrix.python-version }} ${{ matrix.numpy-version }}
       uses: actions/setup-python@v3
       with:
         python-version: ${{ matrix.python-version }}
+        numpy-version: ${{ matrix.numpy-version }} 
         cache: 'pip'
         cache-dependency-path: |
            **/pyproject.toml
@@ -30,7 +33,7 @@ jobs:
         python -m pip install --upgrade pip wheel
         python -m pip install flake8 pytest
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
-        pip install .
+        pip install '${{ matrix.numpy-version }}' .
     - name: Install package
       run: |
         python -m pip install flake8 pytest
diff --git a/README.md b/README.md
index 96cdb09..02f245a 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
+[![CI](https://github.com/hz-b/bact-device-models/actions/workflows/python-package.yml/badge.svg)](https://github.com/hz-b/bact-device-models/actions/workflows/python-package.yml)
+
 # bact-device-models
 Device models used in bact