diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1a5e5d8..da8d68f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
     steps:
       # Checkout the repository
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           submodules: recursive  # Include guillotine-mini submodule
 
@@ -80,7 +80,7 @@ jobs:
     steps:
       # Checkout the repository
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           submodules: recursive
 
@@ -125,7 +125,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           submodules: recursive
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index c2ad4a2..d73d112 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -18,7 +18,7 @@ jobs:
     steps:
       # Checkout with full history for changelog generation
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
           submodules: recursive
diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index 04d3562..81b806f 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -20,7 +20,7 @@ jobs:
       contents: read
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           submodules: recursive  # Include guillotine-mini submodule
 
@@ -46,7 +46,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           submodules: recursive
 
@@ -81,7 +81,7 @@ jobs:
     if: github.event_name == 'pull_request'
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           submodules: recursive