diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9805f1c..4d3074d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
         arch:
           - x64
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/ci_mpi.yml b/.github/workflows/ci_mpi.yml
index 8687b6e..9f7dcaf 100644
--- a/.github/workflows/ci_mpi.yml
+++ b/.github/workflows/ci_mpi.yml
@@ -65,7 +65,7 @@ jobs:
              --with-mpi=1 --with-64-bit-indices
           make
           make install
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}