diff --git a/.github/workflows/codespell.yml b/.github/workflows/codespell.yml
index cecb49f6d..c73d1c03e 100644
--- a/.github/workflows/codespell.yml
+++ b/.github/workflows/codespell.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/docs-test.yml b/.github/workflows/docs-test.yml
index 2af1a0800..e8e1acd0b 100644
--- a/.github/workflows/docs-test.yml
+++ b/.github/workflows/docs-test.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Install pandoc and doxygen
diff --git a/.github/workflows/flake8.yml b/.github/workflows/flake8.yml
index 8a89c06d4..5e3778cec 100644
--- a/.github/workflows/flake8.yml
+++ b/.github/workflows/flake8.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Install Python
         uses: actions/setup-python@v6
diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index 9bf69974a..9197b6570 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -9,7 +9,7 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Install pandoc and doxygen
diff --git a/.github/workflows/isort.yml b/.github/workflows/isort.yml
index 77653cb69..0a55724cb 100644
--- a/.github/workflows/isort.yml
+++ b/.github/workflows/isort.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Install Python 3.11
         uses: actions/setup-python@v6
diff --git a/.github/workflows/pylint.yml b/.github/workflows/pylint.yml
index 98b7adc3e..2e395b520 100644
--- a/.github/workflows/pylint.yml
+++ b/.github/workflows/pylint.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Install Python 3.11
         uses: actions/setup-python@v6
diff --git a/.github/workflows/pytest-mac.yml b/.github/workflows/pytest-mac.yml
index 2492eeb88..5bae75381 100644
--- a/.github/workflows/pytest-mac.yml
+++ b/.github/workflows/pytest-mac.yml
@@ -19,7 +19,7 @@ jobs:
         python-version: ["3.11", "3.12"]
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Install Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6
diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 620e7608d..4c9d047ca 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -19,7 +19,7 @@ jobs:
         python-version: ["3.10", "3.11", "3.12", "3.13"]
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Install Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6
diff --git a/.github/workflows/regtest.yml b/.github/workflows/regtest.yml
index e531f5b1e..efa698ee9 100644
--- a/.github/workflows/regtest.yml
+++ b/.github/workflows/regtest.yml
@@ -19,7 +19,7 @@ jobs:
         python-version: ["3.10", "3.11", "3.12", "3.13"]
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Install Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6