diff --git a/.github/workflows/basic_test.yaml b/.github/workflows/basic_test.yaml
index c3c6168ae..15651005a 100644
--- a/.github/workflows/basic_test.yaml
+++ b/.github/workflows/basic_test.yaml
@@ -37,12 +37,12 @@ jobs:
 
     steps:
     # Only check out HEAD. We don't need the full history.
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 1
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
 
@@ -50,11 +50,12 @@ jobs:
     # Python versions on all OSes.
     - name: Get pip cache dir
       id: pip-cache
+      shell: bash
       run: |
         echo "dir=$(pip cache dir)" >> $GITHUB_OUTPUT
 
     - name: Setup pip cache
-      uses: actions/cache@v3
+      uses: actions/cache@v5
       with:
         path: ${{ steps.pip-cache.outputs.dir }}
         key: ${{ runner.os }}-pip-${{ hashFiles('**/setup.cfg') }}
@@ -66,10 +67,6 @@ jobs:
         python -m pip install --upgrade setuptools pip wheel build twine
         pip install -e .[test]
 
-    - name: Setup flake8 annotations
-      # This commit is v1.1. Using exact commit for security.
-      uses: rbialon/flake8-annotations@48819b39d57c621b5a64a1cdce40a5caa6a43b89
-
     # Stop the build if there are Python syntax errors or undefined names.
     - name: Lint with flake8
       run: |
@@ -92,7 +89,7 @@ jobs:
         twine check dist/*
 
     - name: Upload pytest test results
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v6
       with:
         name: pytest-results-${{ matrix.python-version }}-${{ matrix.os }}
         path: |
diff --git a/.github/workflows/codeql.yaml b/.github/workflows/codeql.yaml
index 2aba7e635..5b0ca3b92 100644
--- a/.github/workflows/codeql.yaml
+++ b/.github/workflows/codeql.yaml
@@ -27,11 +27,11 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v6
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v3
+      uses: github/codeql-action/init@v4
       with:
         languages: ${{ matrix.language }}
         # If you wish to specify custom queries, you can do so here or in a config file.
@@ -40,7 +40,7 @@ jobs:
         # queries: ./path/to/local/query, your-org/your-repo/queries@main
 
     - name: Autobuild
-      uses: github/codeql-action/autobuild@v3
+      uses: github/codeql-action/autobuild@v4
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v3
+      uses: github/codeql-action/analyze@v4
diff --git a/.github/workflows/deploy-docs.yaml b/.github/workflows/deploy-docs.yaml
index de61a5b0f..eb0485129 100644
--- a/.github/workflows/deploy-docs.yaml
+++ b/.github/workflows/deploy-docs.yaml
@@ -14,7 +14,7 @@ jobs:
     environment: docs-deployment
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v6
         with:
           repository: 'pyocd/pyocd-website-source'
           token: ${{ secrets.DEPLOY_TOKEN }}
diff --git a/.github/workflows/nightly.yaml b/.github/workflows/nightly.yaml
index 14b7c389d..4d5e08839 100644
--- a/.github/workflows/nightly.yaml
+++ b/.github/workflows/nightly.yaml
@@ -29,13 +29,13 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ inputs.target_branch || 'develop' }}
           fetch-depth: 0
 
       - name: Setup Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.11'
           cache: 'pip'
@@ -70,7 +70,7 @@ jobs:
           ./dist/pyocd/pyocd --help
 
       - name: Upload PyInstaller artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: ${{ matrix.artifact_name }}-${{ env.PYOCD_VERSION }}
           path: dist/pyocd/*
diff --git a/.github/workflows/release_builds.yaml b/.github/workflows/release_builds.yaml
index 992cfddde..22f27c274 100644
--- a/.github/workflows/release_builds.yaml
+++ b/.github/workflows/release_builds.yaml
@@ -26,12 +26,12 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
       - name: Setup Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.11'
           cache: 'pip'
@@ -74,14 +74,14 @@ jobs:
           ./dist/pyocd/pyocd --help
 
       - name: Upload PyInstaller artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: ${{ matrix.artifact_name }}-${{ env.PYOCD_VERSION }}
           path: dist/pyocd/*
           retention-days: 7
 
       - name: Upload distribution artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         if: matrix.os == 'ubuntu-latest'
         with:
           name: pyocd-distribution-${{ env.PYOCD_VERSION }}