diff --git a/.github/workflows/linux-full-tests.yml b/.github/workflows/linux-full-tests.yml
index 7561d4a451..c2ea3cb8f2 100644
--- a/.github/workflows/linux-full-tests.yml
+++ b/.github/workflows/linux-full-tests.yml
@@ -201,7 +201,7 @@ jobs:
             configureflags: --enable-null-as-functions
     container: ghcr.io/lballabio/quantlib-devenv:${{ matrix.tag }}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Compiler version
       run: |
         ${{ matrix.cc }} --version
diff --git a/.github/workflows/linux-nondefault.yml b/.github/workflows/linux-nondefault.yml
index f55c60aabd..1696956034 100644
--- a/.github/workflows/linux-nondefault.yml
+++ b/.github/workflows/linux-nondefault.yml
@@ -155,7 +155,7 @@ jobs:
             configureflags: --enable-openmp
     container: ghcr.io/lballabio/quantlib-devenv:${{ matrix.tag }}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Compiler version
       run: |
         ${{ matrix.cc }} --version