diff --git a/.github/workflows/docker_build.yml b/.github/workflows/docker_build.yml
index fe5fd72..59b59d4 100644
--- a/.github/workflows/docker_build.yml
+++ b/.github/workflows/docker_build.yml
@@ -13,6 +13,6 @@ jobs:
     docker_build:
         runs-on: ubuntu-latest
         steps:
-        -   uses: actions/checkout@v5
+        -   uses: actions/checkout@v6
         -   name: Build the Docker image
             run: make docker_build
diff --git a/.github/workflows/new_issue.yml b/.github/workflows/new_issue.yml
index 2d8703c..cbcc91a 100644
--- a/.github/workflows/new_issue.yml
+++ b/.github/workflows/new_issue.yml
@@ -9,7 +9,7 @@ jobs:
         permissions:
             issues: write
         steps:
-        -   uses: actions/checkout@v5
+        -   uses: actions/checkout@v6
             with:
                 ref: main
         -   name: Install FAQtory
diff --git a/.github/workflows/package.yml b/.github/workflows/package.yml
index a77911f..5053ebf 100644
--- a/.github/workflows/package.yml
+++ b/.github/workflows/package.yml
@@ -12,7 +12,7 @@ jobs:
     package:
         runs-on: ubuntu-latest
         steps:
-        -   uses: actions/checkout@v5
+        -   uses: actions/checkout@v6
             with:
                 submodules: recursive
                 fetch-depth: 0
diff --git a/.github/workflows/system_tests.yml b/.github/workflows/system_tests.yml
index 1c11c1d..14efabd 100644
--- a/.github/workflows/system_tests.yml
+++ b/.github/workflows/system_tests.yml
@@ -25,7 +25,7 @@ jobs:
             fail-fast: false
         steps:
         -   name: Clone repo
-            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/test_and_coverage.yml b/.github/workflows/test_and_coverage.yml
index d97a48e..2984ca2 100644
--- a/.github/workflows/test_and_coverage.yml
+++ b/.github/workflows/test_and_coverage.yml
@@ -24,7 +24,7 @@ jobs:
         steps:
 
         -   name: Clone repo
-            uses: actions/checkout@v5
+            uses: actions/checkout@v6
 
         -   name: Set up Python ${{ matrix.python-version }}
             uses: actions/setup-python@v6
diff --git a/.github/workflows/validate_cff.yml b/.github/workflows/validate_cff.yml
index b7610ec..4770414 100644
--- a/.github/workflows/validate_cff.yml
+++ b/.github/workflows/validate_cff.yml
@@ -18,7 +18,7 @@ jobs:
     validate_cff:
         runs-on: ubuntu-latest
         steps:
-        -   uses: actions/checkout@v5
+        -   uses: actions/checkout@v6
         -   name: Check whether the citation metadata from CITATION.cff is valid
             uses: citation-file-format/cffconvert-github-action@2.0.0
             with: