diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index d459059fd9..5abbb27c88 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -67,7 +67,7 @@ jobs:
           - '1'
           - 'pre'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/Documentation.yml b/.github/workflows/Documentation.yml
index 63863df6f8..3675443943 100644
--- a/.github/workflows/Documentation.yml
+++ b/.github/workflows/Documentation.yml
@@ -11,7 +11,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@latest
         with:
           version: '1'
diff --git a/.github/workflows/Downgrade.yml b/.github/workflows/Downgrade.yml
index 855cb9c021..556d04c8ea 100644
--- a/.github/workflows/Downgrade.yml
+++ b/.github/workflows/Downgrade.yml
@@ -19,7 +19,7 @@ jobs:
         julia-version: ['1.11']
         group: ['InterfaceI']
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.julia-version }}
diff --git a/.github/workflows/DowngradeSublibraries.yml b/.github/workflows/DowngradeSublibraries.yml
index 60117a6215..bb6c711f8f 100644
--- a/.github/workflows/DowngradeSublibraries.yml
+++ b/.github/workflows/DowngradeSublibraries.yml
@@ -53,7 +53,7 @@ jobs:
           - 'lib/OrdinaryDiffEqVerner'
           - 'lib/SimpleImplicitDiscreteSolve'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.julia-version }}
diff --git a/.github/workflows/Downstream.yml b/.github/workflows/Downstream.yml
index 7d7c4b4cae..acf5461acd 100644
--- a/.github/workflows/Downstream.yml
+++ b/.github/workflows/Downstream.yml
@@ -39,13 +39,13 @@ jobs:
           - {user: SKopecz, repo: PositiveIntegrators.jl, group: Downstream}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.julia-version }}
           arch: x64
       - name: Clone Downstream
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: ${{ matrix.package.user }}/${{ matrix.package.repo }}
           path: downstream
diff --git a/.github/workflows/FormatCheck.yml b/.github/workflows/FormatCheck.yml
index 55af13cc40..8d95186b4e 100644
--- a/.github/workflows/FormatCheck.yml
+++ b/.github/workflows/FormatCheck.yml
@@ -21,7 +21,7 @@ jobs:
         with:
           version: ${{ matrix.julia-version }}
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Install JuliaFormatter and format
         # This will use the latest version by default but you can set the version like so:
         #
diff --git a/.github/workflows/SpellCheck.yml b/.github/workflows/SpellCheck.yml
index ed4fe17798..1a88decc13 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@v5
       - name: Check spelling
         uses: crate-ci/typos@v1.18.0