diff --git a/.github/workflows/autoclose-labeled-issues.yml b/.github/workflows/autoclose-labeled-issues.yml
index 45b4bf5..0fc10ce 100644
--- a/.github/workflows/autoclose-labeled-issues.yml
+++ b/.github/workflows/autoclose-labeled-issues.yml
@@ -26,7 +26,7 @@ jobs:
     timeout-minutes: 10
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Close inactive duplicate issues
         env:
diff --git a/.github/workflows/backfill-dedupe.yml b/.github/workflows/backfill-dedupe.yml
index ef0edff..23077c7 100644
--- a/.github/workflows/backfill-dedupe.yml
+++ b/.github/workflows/backfill-dedupe.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Fetch issues and run dedupe
         env:
diff --git a/.github/workflows/issue-dedupe.yml b/.github/workflows/issue-dedupe.yml
index 096401f..9cd8f7d 100644
--- a/.github/workflows/issue-dedupe.yml
+++ b/.github/workflows/issue-dedupe.yml
@@ -31,7 +31,7 @@ jobs:
        !endsWith(github.actor, '[bot]') &&
        github.actor != 'github-actions')
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Determine issue number
         id: issue