diff --git a/.github/workflows/CompatHelper.yml b/.github/workflows/CompatHelper.yml
index e8ef0c0..ef616af 100644
--- a/.github/workflows/CompatHelper.yml
+++ b/.github/workflows/CompatHelper.yml
@@ -10,7 +10,7 @@ jobs:
   CompatHelper:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: 1
diff --git a/.github/workflows/Downgrade.yml b/.github/workflows/Downgrade.yml
index eb64eff..2ea2136 100644
--- a/.github/workflows/Downgrade.yml
+++ b/.github/workflows/Downgrade.yml
@@ -18,7 +18,7 @@ jobs:
         downgrade_mode: ['alldeps']
         julia-version: ['1.10']
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.julia-version }}
diff --git a/.github/workflows/Downstream.yml b/.github/workflows/Downstream.yml
index 47ed2d1..93e00cb 100644
--- a/.github/workflows/Downstream.yml
+++ b/.github/workflows/Downstream.yml
@@ -25,14 +25,14 @@ jobs:
         package:
           - { user: SciML, repo: BoundaryValueDiffEq.jl, group: All }
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.julia-version }}
           arch: x64
       - uses: julia-actions/julia-buildpkg@v1
       - name: Clone Downstream
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: ${{ matrix.package.user }}/${{ matrix.package.repo }}
           path: downstream
diff --git a/.github/workflows/FormatPR.yml b/.github/workflows/FormatPR.yml
index 0035ca9..43a7b73 100644
--- a/.github/workflows/FormatPR.yml
+++ b/.github/workflows/FormatPR.yml
@@ -6,7 +6,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install JuliaFormatter and format
         run: |
           julia  -e 'using Pkg; Pkg.add(PackageSpec(name="JuliaFormatter"))'
diff --git a/.github/workflows/SpellCheck.yml b/.github/workflows/SpellCheck.yml
index f47460e..f1fd409 100644
--- a/.github/workflows/SpellCheck.yml
+++ b/.github/workflows/SpellCheck.yml
@@ -8,6 +8,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Actions Repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Check spelling
         uses: crate-ci/typos@v1.38.1