diff --git a/.github/workflows/CI_componenttests.yml b/.github/workflows/CI_componenttests.yml
index 35723f4b..dd8543d6 100644
--- a/.github/workflows/CI_componenttests.yml
+++ b/.github/workflows/CI_componenttests.yml
@@ -23,7 +23,7 @@ jobs:
         arch:
           - x64
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/CI_unittests.yml b/.github/workflows/CI_unittests.yml
index febaa2fd..e6734fb9 100644
--- a/.github/workflows/CI_unittests.yml
+++ b/.github/workflows/CI_unittests.yml
@@ -26,7 +26,7 @@ jobs:
         arch:
           - x64
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/CI_unittests_nightly.yml b/.github/workflows/CI_unittests_nightly.yml
index bc9f0ec2..db35648c 100644
--- a/.github/workflows/CI_unittests_nightly.yml
+++ b/.github/workflows/CI_unittests_nightly.yml
@@ -22,7 +22,7 @@ jobs:
         arch:
           - x64
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/Codecov.yml b/.github/workflows/Codecov.yml
index 9e812ce4..95c684c1 100644
--- a/.github/workflows/Codecov.yml
+++ b/.github/workflows/Codecov.yml
@@ -25,7 +25,7 @@ jobs:
         arch:
           - x64
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/Documentation.yml b/.github/workflows/Documentation.yml
index 03a63657..f6a683fe 100644
--- a/.github/workflows/Documentation.yml
+++ b/.github/workflows/Documentation.yml
@@ -14,7 +14,7 @@ jobs:
       pages: write
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: '1.10'