diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1adddea..e3d44c3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -46,7 +46,7 @@ jobs:
         destination: ["test_ios15", "test_tvos15","test_macos", "build_watchos"]
     steps:
       - name: git checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: ruby setup
         uses: ruby/setup-ruby@v1
         with:
@@ -70,7 +70,7 @@ jobs:
   #       destination: ["test_ios14", "test_tvos14","test_macos", "build_watchos_xcode12"]
   #   steps:
   #     - name: git checkout
-  #       uses: actions/checkout@v3
+  #       uses: actions/checkout@v4
   #     - name: ruby setup
   #       uses: ruby/setup-ruby@v1
   #       with:
diff --git a/.github/workflows/generate-docs.yml b/.github/workflows/generate-docs.yml
index 6f8e2b0..448c02e 100644
--- a/.github/workflows/generate-docs.yml
+++ b/.github/workflows/generate-docs.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: macOS-12
     steps:
       - name: git checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: ruby setup
         uses: ruby/setup-ruby@v1
diff --git a/.github/workflows/pod-lint.yml b/.github/workflows/pod-lint.yml
index 3ce7309..9a81d9a 100644
--- a/.github/workflows/pod-lint.yml
+++ b/.github/workflows/pod-lint.yml
@@ -22,7 +22,7 @@ jobs:
     runs-on: macOS-12
     steps:
       - name: git checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: ruby versions
         run: |
diff --git a/.github/workflows/spm.yml b/.github/workflows/spm.yml
index f632bc0..1f7b15d 100644
--- a/.github/workflows/spm.yml
+++ b/.github/workflows/spm.yml
@@ -25,7 +25,7 @@ jobs:
     runs-on: macOS-12
     steps:
       - name: git checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: xcode version
         run: xcodebuild -version -sdk