diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6523b74..10e1985 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -42,7 +42,7 @@ jobs:
         - linux-x64
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - name: Setup SBCL (Ubuntu)
       if: runner.os == 'Linux'
@@ -92,7 +92,7 @@ jobs:
       run: mv ${{ matrix.target }}.${{ env._EXT }} ~/
 
     - name: Checkout binaries repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         repository: ${{ env.REPO_BIN }}
         persist-credentials: false
@@ -139,7 +139,7 @@ jobs:
         - macos-x64
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - name: Setup SBCL (macOS)
       if: runner.os == 'macOS'
@@ -189,7 +189,7 @@ jobs:
       run: mv ${{ matrix.target }}.${{ env._EXT }} ~/
 
     - name: Checkout binaries repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         repository: ${{ env.REPO_BIN }}
         persist-credentials: false
@@ -236,7 +236,7 @@ jobs:
         - win-x64
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - name: Setup SBCL (Windows)
       if: runner.os == 'Windows'
@@ -288,7 +288,7 @@ jobs:
       run: mv ${{ matrix.target }}.${{ env._EXT }} ~/
 
     - name: Checkout binaries repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         repository: ${{ env.REPO_BIN }}
         persist-credentials: false
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index da7186f..cb68a7e 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -27,7 +27,7 @@ jobs:
   publish-doc:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
       with:
         submodules: true
 
@@ -47,7 +47,7 @@ jobs:
         npm run build
 
     - name: Check out GitHub page repo
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       if: github.ref == 'refs/heads/master'
       with:
         repository: cl-qob/cl-qob.github.io
diff --git a/.github/workflows/global.yml b/.github/workflows/global.yml
index b4cd60e..6b92362 100644
--- a/.github/workflows/global.yml
+++ b/.github/workflows/global.yml
@@ -52,7 +52,7 @@ jobs:
       with:
         args: install sbcl
 
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - name: Install Quicklisp
       run: |
diff --git a/.github/workflows/local.yml b/.github/workflows/local.yml
index f3bb238..22d854a 100644
--- a/.github/workflows/local.yml
+++ b/.github/workflows/local.yml
@@ -52,7 +52,7 @@ jobs:
       with:
         args: install sbcl
 
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - name: Install Quicklisp
       run: |
diff --git a/.github/workflows/update_submodules.yml b/.github/workflows/update_submodules.yml
index b388264..dd8f0f8 100644
--- a/.github/workflows/update_submodules.yml
+++ b/.github/workflows/update_submodules.yml
@@ -13,7 +13,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
       with:
         persist-credentials: false
         fetch-depth: 0 
diff --git a/.github/workflows/webinstall.yml b/.github/workflows/webinstall.yml
index be352af..117d689 100644
--- a/.github/workflows/webinstall.yml
+++ b/.github/workflows/webinstall.yml
@@ -26,7 +26,7 @@ jobs:
         os: [ubuntu-latest, macos-latest, windows-latest]
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - name: Install Qob (Unix)
       if: matrix.os == 'ubuntu-latest' || matrix.os == 'macos-latest'