diff --git a/.github/workflows/all_url_check.yml b/.github/workflows/all_url_check.yml
index 535aa77..9c98fc7 100644
--- a/.github/workflows/all_url_check.yml
+++ b/.github/workflows/all_url_check.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: link_check with lychee-action
         id: link_check
diff --git a/.github/workflows/build_document.yml b/.github/workflows/build_document.yml
index 460f697..747dded 100644
--- a/.github/workflows/build_document.yml
+++ b/.github/workflows/build_document.yml
@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           token: ${{secrets.PUSH_TOKEN}}
 
diff --git a/.github/workflows/check_shell_scripts.yml b/.github/workflows/check_shell_scripts.yml
index 8d0b26f..e640721 100644
--- a/.github/workflows/check_shell_scripts.yml
+++ b/.github/workflows/check_shell_scripts.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Install shellcheck
         run: |
diff --git a/.github/workflows/chktex.yml b/.github/workflows/chktex.yml
index d3dae29..33ce96f 100644
--- a/.github/workflows/chktex.yml
+++ b/.github/workflows/chktex.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: LaTeX linter
         uses: colinaaa/chktex-action@5dda098b973d69cdc61ace93fa7bfcef39efaade # v1.1.2
diff --git a/.github/workflows/pdf_check.yml b/.github/workflows/pdf_check.yml
index 901b408..e776f92 100644
--- a/.github/workflows/pdf_check.yml
+++ b/.github/workflows/pdf_check.yml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Install qpdf
         run: |
diff --git a/.github/workflows/python_test.yml b/.github/workflows/python_test.yml
index d80e6fd..461c365 100644
--- a/.github/workflows/python_test.yml
+++ b/.github/workflows/python_test.yml
@@ -27,7 +27,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Set up Python ${{matrix.python-version}}
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
diff --git a/.github/workflows/sonarcloud_check.yml b/.github/workflows/sonarcloud_check.yml
index 9c20995..bf6910d 100644
--- a/.github/workflows/sonarcloud_check.yml
+++ b/.github/workflows/sonarcloud_check.yml
@@ -18,7 +18,7 @@ jobs:
     steps:
 
       - name: Checkout
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           fetch-depth: 0