diff --git a/.github/workflows/ci-linux.yml b/.github/workflows/ci-linux.yml
index c2cb009..46bc253 100644
--- a/.github/workflows/ci-linux.yml
+++ b/.github/workflows/ci-linux.yml
@@ -17,7 +17,7 @@ jobs:
       image: swift:${{ matrix.swift }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v3.5.2
+        uses: actions/checkout@v4.2.0
       - name: Test
         run: swift test -c release --skip-update --parallel --enable-code-coverage
       - name: Build Release
diff --git a/.github/workflows/ci-macos-11.yml b/.github/workflows/ci-macos-11.yml
index 7bde42d..cff5ec0 100644
--- a/.github/workflows/ci-macos-11.yml
+++ b/.github/workflows/ci-macos-11.yml
@@ -15,7 +15,7 @@ jobs:
         xcode: [11.7, 12.5.1]
     steps:
       - name: Checkout
-        uses: actions/checkout@v3.5.2
+        uses: actions/checkout@v4.2.0
       - name: Select Xcode ${{ matrix.xcode }}
         run: sudo xcode-select -s '/Applications/Xcode_${{ matrix.xcode }}.app'
       - name: Test
diff --git a/.github/workflows/ci-macos.yml b/.github/workflows/ci-macos.yml
index cf1729d..359c34d 100644
--- a/.github/workflows/ci-macos.yml
+++ b/.github/workflows/ci-macos.yml
@@ -15,7 +15,7 @@ jobs:
         xcode: [13.4.1, 14.1]
     steps:
       - name: Checkout
-        uses: actions/checkout@v3.5.2
+        uses: actions/checkout@v4.2.0
       - name: Select Xcode ${{ matrix.xcode }}
         run: sudo xcode-select -s '/Applications/Xcode_${{ matrix.xcode }}.app'
       - name: Test
diff --git a/.github/workflows/ci-windows.yml b/.github/workflows/ci-windows.yml
index f693abb..af16022 100644
--- a/.github/workflows/ci-windows.yml
+++ b/.github/workflows/ci-windows.yml
@@ -17,7 +17,7 @@ jobs:
           tag: 5.7-RELEASE
 
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Build Release
         run: swift build -c release --verbose