diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 26bac8435..401165576 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -53,7 +53,7 @@ jobs:
         if [ -f requirements.txt ]; then python3 -m pip install -r requirements.txt; fi
 
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 31ff0ff46..0b4010006 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: macos-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v5
         with:
@@ -62,7 +62,7 @@ jobs:
     runs-on: macos-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v5
         with:
@@ -104,7 +104,7 @@ jobs:
     runs-on: macos-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v5
         with:
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 3691bbfa9..d70dac061 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v5
         with:
@@ -51,7 +51,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v5
         with:
@@ -82,7 +82,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v5
         with:
@@ -124,7 +124,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v5
         with:
diff --git a/.github/workflows/uniq.yaml b/.github/workflows/uniq.yaml
index 3c114f844..a21e26cc5 100644
--- a/.github/workflows/uniq.yaml
+++ b/.github/workflows/uniq.yaml
@@ -14,7 +14,7 @@ jobs:
   check-unique:
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: check unique keys in dic files
         shell: bash
         run: |
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 71077927a..08799a1c0 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -105,7 +105,7 @@ jobs:
             }
             exit 1
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: make clean
         run: make clean
@@ -185,7 +185,7 @@ jobs:
           git config --global core.autocrlf false
           git config --global core.eol lf
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: make clean
         run: make clean