diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5fb94fb..d2eddc3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Install agentic-navigation-guide
         run: cargo install agentic-navigation-guide
@@ -34,7 +34,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Install Just
         uses: extractions/setup-just@v3 
@@ -60,7 +60,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Install Just
         uses: extractions/setup-just@v3 
@@ -86,7 +86,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Install Just
         uses: extractions/setup-just@v3 
@@ -109,7 +109,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Install Just
         uses: extractions/setup-just@v3 
@@ -141,7 +141,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Install Just
         uses: extractions/setup-just@v3 
diff --git a/.github/workflows/claude-code-review.yml b/.github/workflows/claude-code-review.yml
index 871708a..a3c34da 100644
--- a/.github/workflows/claude-code-review.yml
+++ b/.github/workflows/claude-code-review.yml
@@ -23,7 +23,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 1
 
diff --git a/.github/workflows/claude.yml b/.github/workflows/claude.yml
index 62ecee9..9d6f35f 100644
--- a/.github/workflows/claude.yml
+++ b/.github/workflows/claude.yml
@@ -36,7 +36,7 @@ jobs:
       actions: read # Required for Claude to read CI results on PRs
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 1
 
diff --git a/.github/workflows/property-tests.yml b/.github/workflows/property-tests.yml
index d6c2a04..9056950 100644
--- a/.github/workflows/property-tests.yml
+++ b/.github/workflows/property-tests.yml
@@ -37,7 +37,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@stable