diff --git a/.github/workflows/reusable-compatibility.yml b/.github/workflows/reusable-compatibility.yml
index 4b3cb86..011e6ef 100644
--- a/.github/workflows/reusable-compatibility.yml
+++ b/.github/workflows/reusable-compatibility.yml
@@ -48,9 +48,10 @@ jobs:
           sudo mkdir -p /etc/.pymodaq
           sudo chmod uo+rw /etc/.pymodaq
       - name: Install the plugin with the latest PyMoDAQ release
+        # PySide6 6.12.0 aborts (garbage collector) after the tests that open PyMoDAQ's Dashboard, see PyMoDAQ issue #1275
         run: |
           python -m pip install --upgrade pip
-          pip install pytest pytest-qt pytest-xvfb ${{ matrix.qt-backend }}
+          pip install pytest pytest-qt pytest-xvfb ${{ matrix.qt-backend == 'pyside6' && 'pyside6!=6.12.0' || matrix.qt-backend }}
           pip install -e .
       - name: Tests
         run: pytest -vv tests
diff --git a/.github/workflows/reusable-tests.yml b/.github/workflows/reusable-tests.yml
index b6b0662..66b42b7 100644
--- a/.github/workflows/reusable-tests.yml
+++ b/.github/workflows/reusable-tests.yml
@@ -38,9 +38,10 @@ jobs:
           sudo mkdir -p /etc/.pymodaq
           sudo chmod uo+rw /etc/.pymodaq
       - name: Install the plugin
+        # PySide6 6.12.0 aborts (garbage collector) after the tests that open PyMoDAQ's Dashboard, see PyMoDAQ issue #1275
         run: |
           python -m pip install --upgrade pip
-          pip install flake8 pytest pytest-qt pytest-xvfb ${{ inputs.qt-backend }}
+          pip install flake8 pytest pytest-qt pytest-xvfb ${{ inputs.qt-backend == 'pyside6' && 'pyside6!=6.12.0' || inputs.qt-backend }}
           pip install -e .
       - name: Lint (syntax errors and undefined names only)
         run: flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics