diff --git a/.github/workflows/black.yml b/.github/workflows/black.yml
deleted file mode 100644
index 047d448..0000000
--- a/.github/workflows/black.yml
+++ /dev/null
@@ -1,13 +0,0 @@
-name: Black lint
-
-on: [push, pull_request]
-
-jobs:
-  lint:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: psf/black@stable
-        with:
-           options: "--check --verbose --diff"
-           src: "./src"
diff --git a/.github/workflows/mypy.yml b/.github/workflows/mypy.yml
deleted file mode 100644
index 56335bf..0000000
--- a/.github/workflows/mypy.yml
+++ /dev/null
@@ -1,28 +0,0 @@
-name: Mypy type checks
-
-on: [push, pull_request]
-
-jobs:
-  mypy:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [ubuntu-latest]
-        python-version: [3.7, 3.8, 3.9, "3.10"]
-        include:
-          - python-version: 3.7
-            extra-args: "--no-warn-unused-ignores"
-    steps:
-      - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
-        with:
-          python-version: ${{ matrix.python-version }}
-      - uses: actions/checkout@v2
-      - name: Install dependencies
-        run: |
-          python -m pip install --upgrade pip setuptools_scm[toml] wheel setuptools
-          python -m pip install numpy pandas flake8 tox mypy
-      - name: Mypy
-        run: |
-          mypy --cache-dir .mypy_cache --install-types ${{ matrix.extra-args }} --non-interactive --strict --allow-untyped-calls --ignore-missing-imports --non-interactive ./src
diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index bb15ba4..41deb6c 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -1,13 +1,14 @@
 # This workflow will install Python dependencies, run tests and lint with a variety of Python versions
 # For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
 
-name: Tests
+name: Linting and Tests
 
 on:
   [push, pull_request]
 
 jobs:
   tests:
+    name: Tests
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
@@ -52,6 +53,7 @@ jobs:
         fail_ci_if_error: false
   
   mypy:
+    name: Mypy checks
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
@@ -63,10 +65,10 @@ jobs:
             extra-args: "--no-warn-unused-ignores"
     steps:
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip setuptools_scm[toml] wheel setuptools
@@ -76,9 +78,10 @@ jobs:
           mypy --cache-dir .mypy_cache --install-types ${{ matrix.extra-args }} --non-interactive --strict --allow-untyped-calls --ignore-missing-imports --non-interactive ./src
       
   black:
+    name: Black checks
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: psf/black@stable
         with:
             options: "--check --verbose --diff"
diff --git a/src/scikits/bootstrap/bootstrap.py b/src/scikits/bootstrap/bootstrap.py
index 33d2ad4..fc3b1b3 100644
--- a/src/scikits/bootstrap/bootstrap.py
+++ b/src/scikits/bootstrap/bootstrap.py
@@ -454,7 +454,9 @@ def ci(
         if nvals.ndim == 1:
             out = np.abs(statfunction(*tdata) - stat[nvals])[np.newaxis].T
         else:
-            out = np.abs(statfunction(*tdata) - stat[(nvals, np.indices(nvals.shape)[1:])]).T.squeeze()
+            out = np.abs(
+                statfunction(*tdata) - stat[(nvals, np.indices(nvals.shape)[1:])]
+            ).T.squeeze()
     else:
         raise ValueError("Output option {0} is not supported.".format(output))