diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index 26abde9..f8feeeb 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -13,7 +13,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/cache@v4
         with:
           path: ~/.local/share/aquaproj-aqua
@@ -48,7 +48,7 @@ jobs:
           - '3.13'
         workspace: ['locked', 'latest']
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/cache@v4
         with:
           path: ~/.local/share/aquaproj-aqua
@@ -87,7 +87,7 @@ jobs:
   doc-test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/cache@v4
         with:
           path: ~/.local/share/aquaproj-aqua
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 57d2f7e..8a3608a 100755
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -15,7 +15,7 @@ jobs:
   build-common:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/cache@v4
         with:
           path: ~/.local/share/aquaproj-aqua
@@ -43,7 +43,7 @@ jobs:
           - 'manylinux_2_17_x86_64'
           - 'manylinux_2_17_aarch64'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/cache@v4
         with:
           path: ~/.local/share/aquaproj-aqua
@@ -113,7 +113,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/download-artifact@v4
         with:
           path: dist
diff --git a/.github/workflows/sync-dart-sass-version.yaml b/.github/workflows/sync-dart-sass-version.yaml
index 1ecfa59..233f8a6 100644
--- a/.github/workflows/sync-dart-sass-version.yaml
+++ b/.github/workflows/sync-dart-sass-version.yaml
@@ -9,7 +9,7 @@ jobs:
   run:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/cache@v4
         with:
           path: ~/.local/share/aquaproj-aqua