diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 244447c..444d3d5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.11]
+        python-version: [3.12]
         poetry-version: [1.8.3]
         os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}
diff --git a/tests/unit/layouts/utils.py b/tests/unit/layouts/utils.py
index 76138d7..251aa14 100644
--- a/tests/unit/layouts/utils.py
+++ b/tests/unit/layouts/utils.py
@@ -36,7 +36,7 @@ def layout_test(layout_func: LayoutFunc, dimensions, resp, data_dir):
         out_array = np.array(out)
         expected_array = np.array(Image.open(data_dir / filename))
 
-        print(np.argwhere(out_array != expected_array))
+        print((out_array != expected_array).any(axis=-1).sum())
         assert (
             np.allclose(np.array(out), np.array(Image.open(data_dir / filename)))
             or UPDATE_REF_PLOTS