diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5b0dce2..1e6ac2a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup .NET 8
         uses: actions/setup-dotnet@v4
@@ -44,7 +44,7 @@ jobs:
         os: [ubuntu-latest, macos-latest]
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup .NET 8
         uses: actions/setup-dotnet@v4
@@ -63,7 +63,7 @@ jobs:
     runs-on: windows-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup .NET 8
         uses: actions/setup-dotnet@v4
@@ -88,7 +88,7 @@ jobs:
         runtime: ['8.0.x', '9.0.x', '10.0.x']
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       # Build with the .NET 8 SDK (the project's TargetFramework), then add the
       # matrix runtime so we can verify <RollForward>Major</RollForward> actually
@@ -167,7 +167,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install Rust (stable, minimal profile)
         uses: dtolnay/rust-toolchain@stable
@@ -195,7 +195,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup .NET 8
         uses: actions/setup-dotnet@v4
@@ -231,7 +231,7 @@ jobs:
     continue-on-error: true
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup .NET 8
         uses: actions/setup-dotnet@v4
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 1f54ef6..0affc29 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -30,7 +30,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup .NET 8
         uses: actions/setup-dotnet@v4
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 1b054fb..550ecbe 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -28,7 +28,7 @@ jobs:
       hashes: ${{ steps.hash.outputs.hashes }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup .NET 8
         uses: actions/setup-dotnet@v4
diff --git a/.github/workflows/scorecard.yml b/.github/workflows/scorecard.yml
index 4608dab..4b6d5bb 100644
--- a/.github/workflows/scorecard.yml
+++ b/.github/workflows/scorecard.yml
@@ -24,7 +24,7 @@ jobs:
       actions: read
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           persist-credentials: false