diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
old mode 100755
new mode 100644
index e87d6da..32d84d2
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -65,13 +65,13 @@ jobs:
         run: nix develop --accept-flake-config --command make build
 
       - name: Upload Test Coverage
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: coverage
           path: coverage.txt
 
       - name: Upload Fuzz Results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: fuzz-results
           path: testdata/fuzz
diff --git a/.github/workflows/deploy-pages.yml b/.github/workflows/deploy-pages.yml
old mode 100755
new mode 100644
index 94c41e5..43acdac
--- a/.github/workflows/deploy-pages.yml
+++ b/.github/workflows/deploy-pages.yml
@@ -50,14 +50,14 @@ jobs:
 
       - name: Setup Go (if go.mod present)
         if: ${{ hashFiles('go.mod') != '' }}
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version-file: go.mod
           cache: true
 
       - name: Setup Python (if pyproject.toml or requirements*.txt present)
         if: ${{ hashFiles('pyproject.toml') != '' || hashFiles('requirements.txt') != '' || hashFiles('requirements-dev.txt') != '' }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.12'
           cache: 'pip'
@@ -92,7 +92,7 @@ jobs:
 
       - name: Setup Node.js (if package.json present)
         if: ${{ hashFiles('package.json') != '' }}
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: '20'
           cache: ${{ (hashFiles('pnpm-lock.yaml') != '' && 'pnpm') || (hashFiles('yarn.lock') != '' && 'yarn') || (hashFiles('package-lock.json') != '' && 'npm') || '' }}
@@ -150,7 +150,7 @@ jobs:
           cat summary.txt
 
       - name: Upload environment summary artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: environment-summary
           path: summary.txt
@@ -172,7 +172,7 @@ jobs:
           cachix_auth_token: ${{ secrets.CACHIX_AUTH_TOKEN }}
 
       - name: Upload doc-pages artifacts
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@v4
         with:
           name: github-pages
           path: ${{ steps.docs.outputs.site_dir }}
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
old mode 100755
new mode 100644
index 9ffb2f3..040ba65
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -50,7 +50,7 @@ jobs:
           gh-access-token: ${{ secrets.GH_ACCESS_TOKEN }}
           cachix-auth-token: ${{ secrets.CACHIX_AUTH_TOKEN }}
 
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         with:
           path: |
             ~/.cache/go-build
@@ -64,7 +64,7 @@ jobs:
           go run github.com/robertkrimen/godocdown/godocdown@latest . > ${{ secrets.DOCS_LOCATION }}/package.md
 
       - name: Create or update pull request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v8
         with:
           token: ${{ secrets.GH_ACCESS_TOKEN }}
           commit-message: "docs(${{ secrets.DOCS_LOCATION }}/package.md): update package documentation"
diff --git a/.github/workflows/make-build.yml b/.github/workflows/make-build.yml
old mode 100755
new mode 100644
index 6170fe2..d8bdaab
--- a/.github/workflows/make-build.yml
+++ b/.github/workflows/make-build.yml
@@ -46,13 +46,13 @@ jobs:
         run: make build
 
       - name: Upload Test Coverage
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: coverage
           path: coverage.txt
 
       - name: Upload Fuzz Results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: fuzz-results
           path: testdata/fuzz
diff --git a/.github/workflows/make-release.yml b/.github/workflows/make-release.yml
old mode 100755
new mode 100644
index 8c82b3f..5b36fb0
--- a/.github/workflows/make-release.yml
+++ b/.github/workflows/make-release.yml
@@ -40,13 +40,13 @@ jobs:
           gh-access-token: ${{ secrets.GH_ACCESS_TOKEN }}
           cachix-auth-token: ${{ secrets.CACHIX_AUTH_TOKEN }}
 
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: '${{ vars.PYTHON_VERSION }}'
           check-latest: true
 
       - name: Set up Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: ${{ vars.GO_VERSION }}
 
diff --git a/.github/workflows/nix-lab.yml b/.github/workflows/nix-lab.yml
old mode 100755
new mode 100644
index e0c6ecd..b69759f
--- a/.github/workflows/nix-lab.yml
+++ b/.github/workflows/nix-lab.yml
@@ -61,7 +61,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: DeterminateSystems/nix-installer-action@main
@@ -86,14 +86,14 @@ jobs:
              --accept-flake-config --refresh --command ${{ inputs.command }}
 
       - name: Upload Outputs
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           if-no-files-found: ignore
           name: coverage
           path: coverage.txt
 
       - name: Upload Fuzz Results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           if-no-files-found: ignore
           name: fuzz-results
diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
old mode 100755
new mode 100644
index a67e5a7..f138ecb
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -75,7 +75,7 @@ jobs:
 
       - name: Tailscale
         if: ${{ inputs.tailnet }}
-        uses: tailscale/github-action@v3
+        uses: tailscale/github-action@v4
         with:
           oauth-client-id: ${{ secrets.TS_OAUTH_CLIENT_ID }}
           oauth-secret: ${{ secrets.TS_OAUTH_SECRET }}
@@ -88,7 +88,7 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         with:
           path: |
             ~/.cache/go-build
@@ -101,21 +101,21 @@ jobs:
         run: ${{ inputs.command }}
 
       - name: Upload Test Coverage
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           if-no-files-found: ignore
           name: coverage
           path: coverage.txt
 
       - name: Upload Fuzz Results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           if-no-files-found: ignore
           name: fuzz-results
           path: testdata/fuzz
 
       - name: Upload Test Coverage
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           if-no-files-found: ignore
           name: benchmarks