diff --git a/.github/workflows/pr-build.yml b/.github/workflows/pr-build.yml
index 944c2b6e..f7fed92b 100644
--- a/.github/workflows/pr-build.yml
+++ b/.github/workflows/pr-build.yml
@@ -8,7 +8,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
diff --git a/.github/workflows/release-on-merge.yml b/.github/workflows/release-on-merge.yml
index bb9eb786..b7fd9c7d 100644
--- a/.github/workflows/release-on-merge.yml
+++ b/.github/workflows/release-on-merge.yml
@@ -8,7 +8,7 @@ jobs:
   release:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0