diff --git a/.github/workflows/actionlint.yml b/.github/workflows/actionlint.yml
index a35f9d6..457b6bc 100644
--- a/.github/workflows/actionlint.yml
+++ b/.github/workflows/actionlint.yml
@@ -43,7 +43,7 @@ jobs:
             registry-1.docker.io:443
 
       - name: "Checkout"
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index b2b638d..668ddfc 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -40,7 +40,7 @@ jobs:
           allowed-endpoints: >
             github.com:443
       - name: "Checkout"
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           fetch-depth: 0
       - name: "Check Markdown documents"
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index e1cdd76..9fe3bee 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -70,7 +70,7 @@ jobs:
             pypi.org:443
 
       - name: "Checkout"
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/pypi.yml b/.github/workflows/pypi.yml
index 6c1984d..8632bd6 100644
--- a/.github/workflows/pypi.yml
+++ b/.github/workflows/pypi.yml
@@ -48,7 +48,7 @@ jobs:
                     release-assets.githubusercontent.com:443
 
           - name: "Checkout"
-            uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+            uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
             with:
                 # for setuptools-scm
                 fetch-depth: 0
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 4b25081..ca0ecc2 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -58,7 +58,7 @@ jobs:
             pypi.org:443
 
       - name: "Checkout"
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           fetch-depth: 0