diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2716fe5..21fc41f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
     name: Format & Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: dtolnay/rust-toolchain@stable
         with:
@@ -45,7 +45,7 @@ jobs:
     name: Frontend (TypeScript + Build)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-node@v4
         with:
@@ -72,7 +72,7 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: dtolnay/rust-toolchain@stable
 
@@ -86,7 +86,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: check
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: dtolnay/rust-toolchain@stable
 
@@ -120,7 +120,7 @@ jobs:
       checks: write
       contents: read
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: rustsec/audit-check@v2.0.0
         with:
diff --git a/.github/workflows/fuzz.yml b/.github/workflows/fuzz.yml
index b8b2a2e..78094c5 100644
--- a/.github/workflows/fuzz.yml
+++ b/.github/workflows/fuzz.yml
@@ -25,7 +25,7 @@ jobs:
           - fuzz_template
           - fuzz_traceability
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: dtolnay/rust-toolchain@nightly
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index c5622d2..6e0a0ea 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -32,7 +32,7 @@ jobs:
             target: x86_64-pc-windows-msvc
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       # --- Rust ---
       - uses: dtolnay/rust-toolchain@stable
@@ -106,7 +106,7 @@ jobs:
             os: windows-latest
             archive: zip
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: dtolnay/rust-toolchain@stable
         with: