diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index c44b5498..2e2da475 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -38,7 +38,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/dependency-review.yml b/.github/workflows/dependency-review.yml
index 643ef535..38161db1 100644
--- a/.github/workflows/dependency-review.yml
+++ b/.github/workflows/dependency-review.yml
@@ -16,6 +16,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 'Checkout Repository'
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: 'Dependency Review'
         uses: actions/dependency-review-action@v4
diff --git a/.github/workflows/generate-windows-packages-debug.yml b/.github/workflows/generate-windows-packages-debug.yml
index 647d5bfb..c39f39f6 100644
--- a/.github/workflows/generate-windows-packages-debug.yml
+++ b/.github/workflows/generate-windows-packages-debug.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
     - name: Git Checkout ${{github.event.release.tag_name}}
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Set up Python
       uses: actions/setup-python@v6
diff --git a/.github/workflows/generate-windows-packages.yml b/.github/workflows/generate-windows-packages.yml
index 61c790a1..75aba7de 100644
--- a/.github/workflows/generate-windows-packages.yml
+++ b/.github/workflows/generate-windows-packages.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
     - name: Git Checkout ${{github.event.release.tag_name}}
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Set up Python
       uses: actions/setup-python@v6
diff --git a/.github/workflows/lint-flake8.yml b/.github/workflows/lint-flake8.yml
index 11bde1b4..e5d18e4f 100644
--- a/.github/workflows/lint-flake8.yml
+++ b/.github/workflows/lint-flake8.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python 3.x
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/simple-program-linux.yml b/.github/workflows/simple-program-linux.yml
index 65764653..392c7bf4 100644
--- a/.github/workflows/simple-program-linux.yml
+++ b/.github/workflows/simple-program-linux.yml
@@ -18,7 +18,7 @@ jobs:
         python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/simple-program-macos.yml b/.github/workflows/simple-program-macos.yml
index e5d433ea..884daf41 100644
--- a/.github/workflows/simple-program-macos.yml
+++ b/.github/workflows/simple-program-macos.yml
@@ -18,7 +18,7 @@ jobs:
         python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/simple-program-windows.yml b/.github/workflows/simple-program-windows.yml
index c9fab4db..f7025c64 100644
--- a/.github/workflows/simple-program-windows.yml
+++ b/.github/workflows/simple-program-windows.yml
@@ -18,7 +18,7 @@ jobs:
         python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/system-monitor-linux.yml b/.github/workflows/system-monitor-linux.yml
index 75106a48..13571f99 100644
--- a/.github/workflows/system-monitor-linux.yml
+++ b/.github/workflows/system-monitor-linux.yml
@@ -19,7 +19,7 @@ jobs:
         theme: [ "3.5inchTheme2" ]
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/system-monitor-macos.yml b/.github/workflows/system-monitor-macos.yml
index 46d358ff..14b21726 100644
--- a/.github/workflows/system-monitor-macos.yml
+++ b/.github/workflows/system-monitor-macos.yml
@@ -19,7 +19,7 @@ jobs:
         theme: [ "3.5inchTheme2" ]
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/system-monitor-windows.yml b/.github/workflows/system-monitor-windows.yml
index c50f2149..f83e1283 100644
--- a/.github/workflows/system-monitor-windows.yml
+++ b/.github/workflows/system-monitor-windows.yml
@@ -19,7 +19,7 @@ jobs:
         theme: [ "3.5inchTheme2" ]
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/themes-screenshot-on-pr.yml b/.github/workflows/themes-screenshot-on-pr.yml
index b2a49f84..28207541 100644
--- a/.github/workflows/themes-screenshot-on-pr.yml
+++ b/.github/workflows/themes-screenshot-on-pr.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python 3.x
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/themes-screenshot-on-push.yml b/.github/workflows/themes-screenshot-on-push.yml
index d2841227..0b2ac057 100644
--- a/.github/workflows/themes-screenshot-on-push.yml
+++ b/.github/workflows/themes-screenshot-on-push.yml
@@ -21,7 +21,7 @@ jobs:
       contents: write
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python 3.x
       uses: actions/setup-python@v6
       with: