diff --git a/.github/workflows/codespell.yml b/.github/workflows/codespell.yml
index 62e36d60..525a196d 100644
--- a/.github/workflows/codespell.yml
+++ b/.github/workflows/codespell.yml
@@ -33,7 +33,7 @@ jobs:
     name: Enforce codespell-clean spelling
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: codespell-project/actions-codespell@v2
         with:
diff --git a/.github/workflows/run_test_suite.yml b/.github/workflows/run_test_suite.yml
index 0e367761..95fbe121 100644
--- a/.github/workflows/run_test_suite.yml
+++ b/.github/workflows/run_test_suite.yml
@@ -51,7 +51,7 @@ jobs:
             gcc: 15
             install: binutils g++-15 gcc-15 cpp-15
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Add repository "ubuntu-toolchain-r" for GCC 15
         if: "${{ matrix.gcc == '15' }}"