diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0d5610b..c077f63 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
     name: Lint
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       name: Check out repository
     - uses: actions/setup-go@v4
       name: Set up Go
@@ -35,7 +35,7 @@ jobs:
         go: ["1.20.x", "1.21.x"]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Go
       uses: actions/setup-go@v4
       with:
diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index 3f6401a..b1302aa 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # Check out head specified by workflow_dispatch,
           # or the tag if this fired from the push event.