diff --git a/.github/workflows/buf-ci.yaml b/.github/workflows/buf-ci.yaml
index d7780474..5a2a1cbc 100644
--- a/.github/workflows/buf-ci.yaml
+++ b/.github/workflows/buf-ci.yaml
@@ -11,10 +11,10 @@ jobs:
   buf:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
             path: head
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
             path: base
             ref: ${{ github.event.pull_request.base.sha }}
diff --git a/.github/workflows/ci-tests.yml b/.github/workflows/ci-tests.yml
index a893f710..b0cf540c 100644
--- a/.github/workflows/ci-tests.yml
+++ b/.github/workflows/ci-tests.yml
@@ -32,7 +32,7 @@ jobs:
           # sudo apt-get update && sudo apt-get install -y git libxml2
 
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 50
 
@@ -198,7 +198,7 @@ jobs:
       pull-requests: read
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 50
       - name: confirm repository checkout
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 44b7d038..495cc273 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -10,7 +10,7 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup Python
         uses: actions/setup-python@v5