diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
deleted file mode 100644
index be286f2..0000000
--- a/.github/workflows/coverage.yml
+++ /dev/null
@@ -1,43 +0,0 @@
-name: Code coverage
-
-on:
-  push:
-    branches:
-      - main
-      - 'stable/**'
-  pull_request:
-    branches:
-      - main
-      - 'stable/**'
-
-jobs:
-  coverage:
-    name: coverage (${{ matrix.os }}, ${{ matrix.python-version }})
-    runs-on: ${{ matrix.os }}
-    timeout-minutes: 30
-    strategy:
-      max-parallel: 4
-      matrix:
-        os: [ubuntu-latest]
-        python-version: ["3.10"]
-    steps:
-      - uses: actions/checkout@v4
-      - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
-        with:
-          python-version: ${{ matrix.python-version }}
-      - name: Install tox
-        run: |
-          python -m pip install --upgrade pip
-          pip install tox coverage
-      - name: Run coverage
-        run: |
-          tox -e coverage
-      - name: Convert to lcov
-        run: coverage3 lcov -o coveralls.lcov
-      - name: Upload report to Coveralls
-        uses: coverallsapp/github-action@v2
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          file: coveralls.lcov
-          format: lcov
diff --git a/.github/workflows/test_development_versions.yml b/.github/workflows/test_development_versions.yml
index 9607a04..4b12019 100644
--- a/.github/workflows/test_development_versions.yml
+++ b/.github/workflows/test_development_versions.yml
@@ -19,7 +19,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: [3.9, 3.12]
+        python-version: [3.9]
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
diff --git a/.github/workflows/test_minimum_versions.yml b/.github/workflows/test_minimum_versions.yml
index cc36322..5255ed2 100644
--- a/.github/workflows/test_minimum_versions.yml
+++ b/.github/workflows/test_minimum_versions.yml
@@ -17,7 +17,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: [3.9]
+        python-version: [3.12]
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}