diff --git a/.github/workflows/ci-meson.yml b/.github/workflows/ci-meson.yml
index 87a3577..bc95e41 100644
--- a/.github/workflows/ci-meson.yml
+++ b/.github/workflows/ci-meson.yml
@@ -30,7 +30,7 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Install Meson and Boost.Test
         run: sudo apt-get install --yes -qq meson libboost-test-dev
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9b220a6..1072d84 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,7 +28,7 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - name: Install Boost.Test
       run: sudo apt-get install --yes -qq libboost-test-dev
diff --git a/.github/workflows/cmake-gcc-clang.yml b/.github/workflows/cmake-gcc-clang.yml
index 19e9737..9118554 100644
--- a/.github/workflows/cmake-gcc-clang.yml
+++ b/.github/workflows/cmake-gcc-clang.yml
@@ -42,7 +42,7 @@ jobs:
             - { c: clang, cpp: clang++ }
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - name: Set reusable strings
       # Turn repeated input strings (such as the build output directory) into step outputs. These step outputs can be used throughout the workflow file.