diff --git a/.github/workflows/docs_publish.yml b/.github/workflows/docs_publish.yml
index 68d413c..11b97bd 100644
--- a/.github/workflows/docs_publish.yml
+++ b/.github/workflows/docs_publish.yml
@@ -10,7 +10,7 @@ jobs:
     name: build and publish docs
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Set up Python 3.14
         uses: actions/setup-python@v6.2.0
diff --git a/.github/workflows/docs_source_update.yml b/.github/workflows/docs_source_update.yml
index baf2c9a..4400741 100644
--- a/.github/workflows/docs_source_update.yml
+++ b/.github/workflows/docs_source_update.yml
@@ -12,7 +12,7 @@ jobs:
     name: update docs source
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Set up Python 3.14
         uses: actions/setup-python@v6.2.0
diff --git a/.github/workflows/formatting_check.yml b/.github/workflows/formatting_check.yml
index 0a1176f..52cfd5b 100644
--- a/.github/workflows/formatting_check.yml
+++ b/.github/workflows/formatting_check.yml
@@ -12,7 +12,7 @@ jobs:
         python-version: [ "3.14" ]
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6.2.0
diff --git a/.github/workflows/linting_check.yml b/.github/workflows/linting_check.yml
index 6928838..93ade1e 100644
--- a/.github/workflows/linting_check.yml
+++ b/.github/workflows/linting_check.yml
@@ -12,7 +12,7 @@ jobs:
         python-version: [ "3.10", "3.11", "3.12", "3.13", "3.14" ]
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6.2.0
diff --git a/.github/workflows/pypi-publish-release.yml b/.github/workflows/pypi-publish-release.yml
index 1549f67..44c1b46 100644
--- a/.github/workflows/pypi-publish-release.yml
+++ b/.github/workflows/pypi-publish-release.yml
@@ -10,7 +10,7 @@ jobs:
     name: Build distribution
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Set up Python 3.10
         uses: actions/setup-python@v6.2.0
diff --git a/.github/workflows/unit_tests.yml b/.github/workflows/unit_tests.yml
index 88c28d3..e2e22e8 100644
--- a/.github/workflows/unit_tests.yml
+++ b/.github/workflows/unit_tests.yml
@@ -11,7 +11,7 @@ jobs:
         python-version: [ "3.10", "3.11", "3.12", "3.13", "3.14" ]
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6.2.0