diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 0a9af06..96c80f2 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -24,7 +24,7 @@ jobs:
 
     # --- Python Syntax Check ---
     - name: Set up Python
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: '3.x'
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 20b8142..911785c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -88,7 +88,7 @@ jobs:
           fetch-depth: 0
 
       - name: Set up Python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v6
         with:
           python-version: '3.11'
           cache: 'pip'
@@ -289,7 +289,7 @@ jobs:
           fetch-depth: 0
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
           cache: 'pip'
diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index 3c43c02..395a8fc 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -91,7 +91,7 @@ jobs:
           ref: refs/pull/${{ needs.check-trigger.outputs.pr_number }}/merge
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.11'
           cache: 'pip'
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index b5652dc..24e2829 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -30,7 +30,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Set up Python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v6
         with:
           python-version: '3.11'