diff --git a/.github/workflows/dry-run-history-rewrite.yml b/.github/workflows/dry-run-history-rewrite.yml
index 921b3e97..77a56460 100644
--- a/.github/workflows/dry-run-history-rewrite.yml
+++ b/.github/workflows/dry-run-history-rewrite.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/history-rewrite-tests.yml b/.github/workflows/history-rewrite-tests.yml
index 8be98d25..d2f9bf72 100644
--- a/.github/workflows/history-rewrite-tests.yml
+++ b/.github/workflows/history-rewrite-tests.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout with full history
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/pr-checklist.yml b/.github/workflows/pr-checklist.yml
index fe0399f7..ff914b5c 100644
--- a/.github/workflows/pr-checklist.yml
+++ b/.github/workflows/pr-checklist.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
 
       - name: Validate PR checklist (only for history-rewrite changes)
         uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
diff --git a/.github/workflows/repo-health.yml b/.github/workflows/repo-health.yml
index 1737fb62..367ffa34 100644
--- a/.github/workflows/repo-health.yml
+++ b/.github/workflows/repo-health.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
         with:
           fetch-depth: 0
           lfs: true