diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 7c0f5e04..d5ce0fec 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -11,7 +11,7 @@ jobs:
   docs:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@latest
         with:
           version: "^1.4"
diff --git a/.github/workflows/format_check.yml b/.github/workflows/format_check.yml
index dfae15f0..4b5ae824 100644
--- a/.github/workflows/format_check.yml
+++ b/.github/workflows/format_check.yml
@@ -15,7 +15,7 @@ jobs:
       - uses: julia-actions/setup-julia@latest
         with:
           version: "^1.4"
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Install JuliaFormatter and format
         run: |
           julia  -e 'using Pkg; Pkg.add(PackageSpec(name="JuliaFormatter", version="1.0.33"))'
diff --git a/.github/workflows/run_tests.yml b/.github/workflows/run_tests.yml
index 78495ac5..00ed8c94 100644
--- a/.github/workflows/run_tests.yml
+++ b/.github/workflows/run_tests.yml
@@ -19,7 +19,7 @@ jobs:
         julia-version: ["1.10", "^1.12"]
         os: [ubuntu-latest]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@latest
         with:
           version: ${{ matrix.julia-version }}
diff --git a/.github/workflows/run_tests_modelkit.yml b/.github/workflows/run_tests_modelkit.yml
index 5966d289..c9090359 100644
--- a/.github/workflows/run_tests_modelkit.yml
+++ b/.github/workflows/run_tests_modelkit.yml
@@ -18,7 +18,7 @@ jobs:
         julia-version: ["1.10", "^1.12"]
         os: [ubuntu-latest]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@latest
         with:
           version: ${{ matrix.julia-version }}