diff --git a/.github/workflows/shellcheck.yml b/.github/workflows/shellcheck.yml
index 4883725..6787fbe 100644
--- a/.github/workflows/shellcheck.yml
+++ b/.github/workflows/shellcheck.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: shellcheck
         uses: reviewdog/action-shellcheck@v1
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index e08ebcb..672db4f 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Run tests
         run: ./install.zsh --non-interactive
@@ -26,7 +26,7 @@ jobs:
 
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Run tests
         run: curl -L https://raw.githubusercontent.com/Okabe-Junya/dotfiles/main/install.zsh | zsh -s -- --non-interactive