diff --git a/.github/workflows/test_and_deploy.yml b/.github/workflows/test_and_deploy.yml
index 6a8a7c0..872fde1 100644
--- a/.github/workflows/test_and_deploy.yml
+++ b/.github/workflows/test_and_deploy.yml
@@ -32,7 +32,9 @@ jobs:
         include:
         - os: ubuntu-latest
           python-version: "3.11"
-        - os: macos-latest
+        - os: macos-13 # Intel Mac
+          python-version: "3.10"
+        - os: macos-latest # ARM Mac
           python-version: "3.10"
         - os: windows-latest
           python-version: "3.9"
@@ -43,6 +45,9 @@ jobs:
         with:
           path: ~/.brainglobe
           key: bg-atlases
+      - name: install HDF5 libs on ARM Mac
+        if: matrix.os == 'macos-latest'
+        run: brew install hdf5
       # Setup pyqt libraries
       - uses: tlambert03/setup-qt-libs@v1
       # Helps set up VTK with a headless display
diff --git a/tests/tests/test_unit/test_regions/test_region_analysis.py b/tests/tests/test_unit/test_regions/test_region_analysis.py
index 93dd4b5..c9f31f8 100644
--- a/tests/tests/test_unit/test_regions/test_region_analysis.py
+++ b/tests/tests/test_unit/test_regions/test_region_analysis.py
@@ -99,7 +99,10 @@ def test_summarise_brain_regions_all_not_empty(
     df = pd.read_csv(filename)
     assert df.shape == (3, 11)
     for key, value in previous_world_space_values.items():
-        assert df[key].iloc[0] == value
+        if isinstance(value, (int, float)):
+            assert np.isclose(df[key].iloc[0], value)
+        else:
+            assert df[key].iloc[0] == value
 
 
 def test_summarise_brain_regions_some_empty(
@@ -124,7 +127,10 @@ def test_summarise_brain_regions_some_empty(
     df = pd.read_csv(filename)
     assert df.shape == (1, 11)
     for key, value in previous_world_space_values.items():
-        assert df[key].iloc[0] == value
+        if isinstance(value, (int, float)):
+            assert np.isclose(df[key].iloc[0], value)
+        else:
+            assert df[key].iloc[0] == value
 
 
 def test_summarise_brain_regions_all_empty(