diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ac0a822..1202a64 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -73,7 +73,7 @@ jobs:
       NIM_ARCH: ${{ matrix.target.cpu }}
     steps:
       - name: Checkout threading
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           path: threading
           submodules: false
diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index 80ffe06..ad5f8dd 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -13,7 +13,7 @@ jobs:
   docs:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: jiro4989/setup-nim-action@v1
         with:
           nim-version: 'devel'