diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0a542af8df13f83575a39a3ab45f0721bc9a7c91..2bdc56d8752c64283fb4b7f8544f5d1c231573e3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -14,7 +14,7 @@ jobs:
           - minimal:latest
           - jekyll:pages
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-ruby@v1
         with:
           ruby-version: '2.x'
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 1a26809db7a851040fbd0d657a602ac3afb71dbb..c47c78aae92c7ce2e58ad7b7f2bcafc65ea6295f 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -36,7 +36,7 @@ jobs:
           - minimal:pages
           - jekyll:pages
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-ruby@v1
         with:
           ruby-version: '2.x'