diff --git a/.github/workflows/publish-to-pypi.yml b/.github/workflows/publish-to-pypi.yml
index 1fdf35b..75f8001 100644
--- a/.github/workflows/publish-to-pypi.yml
+++ b/.github/workflows/publish-to-pypi.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set version suffix for TestPyPI
         id: set_version
         run: |
diff --git a/.github/workflows/tests-cxx.yml b/.github/workflows/tests-cxx.yml
index 9419b74..af058b0 100644
--- a/.github/workflows/tests-cxx.yml
+++ b/.github/workflows/tests-cxx.yml
@@ -6,7 +6,7 @@ jobs:
   cxx:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Install libraries
       run: |
         sudo apt-get update
diff --git a/.github/workflows/tests-python.yml b/.github/workflows/tests-python.yml
index a5c076e..43074a9 100644
--- a/.github/workflows/tests-python.yml
+++ b/.github/workflows/tests-python.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Install uv
       uses: astral-sh/setup-uv@v7
       with: