diff --git a/.github/workflows/daily.yml b/.github/workflows/daily.yml
index 1906fc652..258fb28fd 100644
--- a/.github/workflows/daily.yml
+++ b/.github/workflows/daily.yml
@@ -61,7 +61,7 @@ jobs:
           pdb_test_gh_job_id+="_${{ matrix.deprecated-query-streaming }}"
 
           echo "pdb-job-id=$pdb_test_gh_job_id" >> "$GITHUB_OUTPUT"
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           ref: ${{ matrix.branch }}
           persist-credentials: false
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index a54f10f82..8f9a9401f 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -80,7 +80,7 @@ jobs:
 
           echo "day=$(date +%Y-%m-%d)" >> "$GITHUB_OUTPUT"
           echo "pdb-job-id=$pdb_test_gh_job_id" >> "$GITHUB_OUTPUT"
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           persist-credentials: false
       - uses: ruby/setup-ruby@v1
@@ -120,7 +120,7 @@ jobs:
 
     steps:
     - name: Initialize
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Docs test
       uses: dita-ot/dita-ot-action@4.2.4
@@ -132,7 +132,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: checkout repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
       - name: setup java
@@ -153,7 +153,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: checkout repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
       - name: setup ruby