diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 845617d..b40c2fb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2.3.4
+        uses: actions/checkout@v4.1.7
 
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
@@ -47,7 +47,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2.3.4
+        uses: actions/checkout@v4.1.7
 
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
@@ -96,7 +96,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2.3.4
+        uses: actions/checkout@v4.1.7
 
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1