diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 12767382..7fde3acd 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -18,7 +18,7 @@ jobs:
         os: ['ubuntu-latest', 'macos-latest', 'windows-latest']
         python-version: ['3.10', '3.11', '3.12']
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5
       with:
diff --git a/.github/workflows/cffconvert.yml b/.github/workflows/cffconvert.yml
index 71443637..9c59667e 100644
--- a/.github/workflows/cffconvert.yml
+++ b/.github/workflows/cffconvert.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out a copy of the repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Check whether the citation metadata from CITATION.cff is valid
         uses: citation-file-format/cffconvert-github-action@2.0.0
diff --git a/.github/workflows/link-check.yml b/.github/workflows/link-check.yml
index a2d0ddfb..6ec6aeab 100644
--- a/.github/workflows/link-check.yml
+++ b/.github/workflows/link-check.yml
@@ -19,7 +19,7 @@ jobs:
   linkChecker:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Link Checker
         id: lychee
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 7de55161..c261a078 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -18,7 +18,7 @@ jobs:
         os: ['ubuntu-latest', 'macos-latest', 'windows-latest']
         python-version: ['3.10', '3.11', '3.12']
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5
       with: