diff --git a/.github/workflows/build-docs.yaml b/.github/workflows/build-docs.yaml
index 8027049..6cafa7c 100644
--- a/.github/workflows/build-docs.yaml
+++ b/.github/workflows/build-docs.yaml
@@ -18,7 +18,7 @@ jobs:
   build:
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: set up R
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6821a42..0d6fcca 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -36,7 +36,7 @@ jobs:
     timeout-minutes: 30
     steps:
       - name: checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: pre-commit/action@v3.0.1
@@ -67,7 +67,7 @@ jobs:
           - 8.17.2
     steps:
       - name: checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 1
       - name: set up R