diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index e4b9e37..0bd4834 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -49,7 +49,7 @@ jobs:
 
     steps:
     - name: Checkout PR
-      uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       with:
         fetch-depth: 0
 
@@ -132,7 +132,7 @@ jobs:
 
     steps:
     - name: Checkout release
-      uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       with:
         fetch-depth: 0
 
@@ -208,7 +208,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       with:
         fetch-depth: 0
 
diff --git a/.github/workflows/build-and-publish.yml b/.github/workflows/build-and-publish.yml
index e9c3aea..828c07d 100644
--- a/.github/workflows/build-and-publish.yml
+++ b/.github/workflows/build-and-publish.yml
@@ -23,7 +23,7 @@ jobs:
     name: Build source distribution
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           fetch-depth: 0
 
@@ -58,7 +58,7 @@ jobs:
           - os: ubuntu-24.04-arm    # Native ARM64 runner (no QEMU)
             arch: aarch64
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           fetch-depth: 0
 
@@ -89,7 +89,7 @@ jobs:
       matrix:
         arch: [AMD64]  # Add x86, ARM64 for releases when needed
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           fetch-depth: 0
 
@@ -124,7 +124,7 @@ jobs:
           - os: macos-15      # Apple Silicon arm64 (Xcode 16.4 / Apple Clang 16)
             arch: arm64
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           fetch-depth: 0
 
@@ -169,7 +169,7 @@ jobs:
             os: macos-15
             artifact: built-wheels-macos-arm64
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
         with:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0789ce3..4ea93cd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -77,7 +77,7 @@ jobs:
     name: ${{ matrix.name }}
 
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Install Ninja (Linux)
         if: runner.os == 'Linux'
@@ -164,7 +164,7 @@ jobs:
     name: ${{ matrix.name }}
 
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Install Ninja (Linux)
         if: runner.os == 'Linux'
diff --git a/.github/workflows/csharp-nuget.yml b/.github/workflows/csharp-nuget.yml
index f6873cc..2f9eb7a 100644
--- a/.github/workflows/csharp-nuget.yml
+++ b/.github/workflows/csharp-nuget.yml
@@ -62,7 +62,7 @@ jobs:
             lib-dir: build
 
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Install Ninja (Linux)
         if: runner.os == 'Linux'
@@ -113,7 +113,7 @@ jobs:
     needs: build-native
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Setup .NET
         uses: actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9 # v4
@@ -182,7 +182,7 @@ jobs:
           - os: windows-latest
           - os: macos-15
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Setup .NET
         uses: actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9 # v4
diff --git a/.github/workflows/release-publish.yml b/.github/workflows/release-publish.yml
index 87b6040..d52e13e 100644
--- a/.github/workflows/release-publish.yml
+++ b/.github/workflows/release-publish.yml
@@ -22,7 +22,7 @@ jobs:
     
     steps:
     - name: Checkout repository
-      uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       with:
         fetch-depth: 0
     
diff --git a/.github/workflows/unity-package.yml b/.github/workflows/unity-package.yml
index 1a963de..af335ae 100644
--- a/.github/workflows/unity-package.yml
+++ b/.github/workflows/unity-package.yml
@@ -58,7 +58,7 @@ jobs:
             lib-dir: build
 
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Install Ninja (Linux)
         if: runner.os == 'Linux'
@@ -109,7 +109,7 @@ jobs:
     needs: build-native
     runs-on: macos-15
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Download all native artifacts
         uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4
diff --git a/.github/workflows/upm-branch.yml b/.github/workflows/upm-branch.yml
index 0d5cbdc..3d8e146 100644
--- a/.github/workflows/upm-branch.yml
+++ b/.github/workflows/upm-branch.yml
@@ -28,7 +28,7 @@ jobs:
 
     steps:
       - name: Checkout source
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           fetch-depth: 0