diff --git a/.github/workflows/black-formatter.yml b/.github/workflows/black-formatter.yml
index 47fadb2e..9487a9ff 100644
--- a/.github/workflows/black-formatter.yml
+++ b/.github/workflows/black-formatter.yml
@@ -1,19 +1,29 @@
 name: Black Linter
 on:
-    push:
-        branches:
-        - main
-    pull_request:
-        branches:
-        - main
+  push:
+    branches-ignore:
+      - main
+    paths-ignore:
+      - "docs/**"
+  pull_request:
+    branches:
+      - main
+    paths-ignore:
+      - "docs/**"
     workflow_dispatch:
 
+concurrency:
+  # Skip intermediate builds: always.
+  # Cancel intermediate builds: always.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
-    lint:
-        runs-on: ubuntu-latest
-        steps:
-        - uses: actions/checkout@v3
-        - uses: psf/black@stable
-          with:
-              options: "--check --verbose --diff"
-              version: "~= 22.0"
\ No newline at end of file
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: psf/black@stable
+        with:
+          options: "--check --verbose --diff --color"
+          version: "~= 22.0"
diff --git a/.github/workflows/test-pippin.yml b/.github/workflows/test-pippin.yml
index e43582f6..2d181425 100644
--- a/.github/workflows/test-pippin.yml
+++ b/.github/workflows/test-pippin.yml
@@ -1,42 +1,59 @@
 name: test-pippin
 on:
-    push:
-        branches:
-        - main
-    pull_request:
-        branches:
-        - main
+  push:
+    branches-ignore:
+      - main
+    paths-ignore:
+      - "docs/**"
+      - ".github/**"
+  pull_request:
+    branches:
+      - main
+    paths-ignore:
+      - "docs/**"
+      - ".github/**"
     workflow_dispatch:
 
+concurrency:
+  # Skip intermediate builds: always.
+  # Cancel intermediate builds: always.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
-    test:
-        runs-on: ubuntu-latest
-        strategy:
-            matrix:
-                python-version: ["3.7", "3.8", "3.9", "3.10"]
+  test:
+    name: Python ${{ matrix.python-version }} - ${{ github.event_name }}
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+    strategy:
+      fail-fast: true
+      matrix:
+        # '3.7' is the minimum supported version
+        # '3.x' is the lateest minor release of Python 3
+        python-version: ["3.7", "3.x"]
 
-        steps:
-            - name: Check out repository code
-              uses: actions/checkout@v2
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v4
 
-            - name: Setup Python ${{ matrix.python-version }}
-              uses: actions/setup-python@v2
-              with:
-                python-version: ${{ matrix.python-version }}
+      - name: Setup Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
 
-            - name: Install dependencies
-              run: |
-                python -m pip install --upgrade pip setuptools wheel
-                pip install -r requirements.txt
-                pip install -r requirements_dev.txt
-                pip install -U numpy
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip setuptools wheel
+          pip install -r requirements.txt
+          pip install -r requirements_dev.txt
+          pip install -U numpy
 
-            - name: Setup pippin
-              run: |
-                python setup.py sdist
+      - name: Setup pippin
+        run: |
+          python setup.py sdist
 
-            - name: Test pippin
-              run: |
-                pytest -v .
-              env:
-                SNANA_DIR: SNANA_DIR
+      - name: Test pippin
+        run: |
+          pytest -v .
+        env:
+          SNANA_DIR: SNANA_DIR