diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 99ba747..98a2b2b 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -2,9 +2,9 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ "main" ]
+    branches: ["main"]
   pull_request:
-    branches: [ "main" ]
+    branches: ["main"]
   schedule:
     - cron: "25 21 * * 5"
 
@@ -20,11 +20,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        language: [ python ]
+        language: [python]
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: false
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v2
diff --git a/.github/workflows/macos-arm.yaml b/.github/workflows/macos-arm.yaml
index 367cb22..f785470 100644
--- a/.github/workflows/macos-arm.yaml
+++ b/.github/workflows/macos-arm.yaml
@@ -73,6 +73,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
+        with:
+          persist-credentials: false
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
@@ -88,7 +90,11 @@ jobs:
         run: echo "TOXENV=py$(echo ${{ matrix.python-version }} | tr -d '.')-torch$(echo ${{ matrix.torch-version }} | tr -d '.')" >> $GITHUB_ENV
 
       - name: Print TOXENV
-        run: echo "TOXENV is set to '${{ env.TOXENV }}'."
+        run: echo "TOXENV is set to '${TOXENV}'."
+        env:
+          TOXENV: ${{ env.TOXENV }}
 
       - name: Unittests with tox
-        run: tox -e ${{ env.TOXENV }}
+        run: tox -e $TOXENV
+        env:
+          TOXENV: ${{ env.TOXENV }}
diff --git a/.github/workflows/macos-x86.yaml b/.github/workflows/macos-x86.yaml
index acdef16..5aa3799 100644
--- a/.github/workflows/macos-x86.yaml
+++ b/.github/workflows/macos-x86.yaml
@@ -84,6 +84,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
+        with:
+          persist-credentials: false
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
@@ -99,7 +101,11 @@ jobs:
         run: echo "TOXENV=py$(echo ${{ matrix.python-version }} | tr -d '.')-torch$(echo ${{ matrix.torch-version }} | tr -d '.')" >> $GITHUB_ENV
 
       - name: Print TOXENV
-        run: echo "TOXENV is set to '${{ env.TOXENV }}'."
+        run: echo "TOXENV is set to '${TOXENV}'."
+        env:
+          TOXENV: ${{ env.TOXENV }}
 
       - name: Unittests with tox
-        run: tox -e ${{ env.TOXENV }}
+        run: tox -e $TOXENV
+        env:
+          TOXENV: ${{ env.TOXENV }}
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 748fc97..6f996b3 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -33,6 +33,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
+        with:
+          persist-credentials: false
 
       - name: Build wheel (bdist)
         run: pipx run build --wheel
@@ -47,6 +49,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
+        with:
+          persist-credentials: false
 
       - name: Build source distribution (sdist)
         run: pipx run build --sdist
diff --git a/.github/workflows/ubuntu.yaml b/.github/workflows/ubuntu.yaml
index 2aaae45..1f8d91f 100644
--- a/.github/workflows/ubuntu.yaml
+++ b/.github/workflows/ubuntu.yaml
@@ -90,6 +90,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
+        with:
+          persist-credentials: false
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
@@ -105,13 +107,17 @@ jobs:
         run: echo "TOXENV=py$(echo ${{ matrix.python-version }} | tr -d '.')-torch$(echo ${{ matrix.torch-version }} | tr -d '.')" >> $GITHUB_ENV
 
       - name: Print TOXENV
-        run: echo "TOXENV is set to '${{ env.TOXENV }}'."
+        run: echo "TOXENV is set to '${TOXENV}'."
+        env:
+          TOXENV: ${{ env.TOXENV }}
 
       - name: Unittests with tox
-        run: tox -e ${{ env.TOXENV }}
+        run: tox -e $TOXENV
+        env:
+          TOXENV: ${{ env.TOXENV }}
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@7f8b4b4bde536c465e797be725718b88c5d95e0e # 5.1.1
         if: >
           matrix.python-version == '3.11' &&
           matrix.torch-version == '2.2.2' &&
diff --git a/.github/workflows/windows.yaml b/.github/workflows/windows.yaml
index a967b68..e6cd6a6 100644
--- a/.github/workflows/windows.yaml
+++ b/.github/workflows/windows.yaml
@@ -82,6 +82,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
+        with:
+          persist-credentials: false
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
@@ -97,7 +99,11 @@ jobs:
         run: echo "TOXENV=py$(echo ${{ matrix.python-version }} | tr -d '.')-torch$(echo ${{ matrix.torch-version }} | tr -d '.')" >> $GITHUB_ENV
 
       - name: Print TOXENV
-        run: echo "TOXENV is set to '${{ env.TOXENV }}'."
+        run: echo "TOXENV is set to '${TOXENV}'."
+        env:
+          TOXENV: ${{ env.TOXENV }}
 
       - name: Unittests with tox
-        run: tox -e ${{ env.TOXENV }}
+        run: tox -e $TOXENV
+        env:
+          TOXENV: ${{ env.TOXENV }}