diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index f73029eca..f0eca7417 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -24,7 +24,7 @@ jobs:
           - version: "1.6"
             arch: x86
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/IntegrationTest.yml b/.github/workflows/IntegrationTest.yml
index f34247cbe..e8b24668b 100644
--- a/.github/workflows/IntegrationTest.yml
+++ b/.github/workflows/IntegrationTest.yml
@@ -25,14 +25,14 @@ jobs:
         #    package: {user: JuliaDiff, repo: Diffractor.jl}
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.julia-version }}
           arch: x64
       - uses: julia-actions/julia-buildpkg@latest
       - name: Clone Downstream
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: ${{ matrix.package.user }}/${{ matrix.package.repo }}
           path: downstream
diff --git a/.github/workflows/JuliaNightly.yml b/.github/workflows/JuliaNightly.yml
index 0c9fa02f6..ab79d4242 100644
--- a/.github/workflows/JuliaNightly.yml
+++ b/.github/workflows/JuliaNightly.yml
@@ -23,7 +23,7 @@ jobs:
           - x86
           - x64
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/VersionVigilante_pull_request.yml b/.github/workflows/VersionVigilante_pull_request.yml
index d9bd3284d..bf293be66 100644
--- a/.github/workflows/VersionVigilante_pull_request.yml
+++ b/.github/workflows/VersionVigilante_pull_request.yml
@@ -6,7 +6,7 @@ jobs:
   VersionVigilante:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@latest
       - name: VersionVigilante.main
         id: versionvigilante_main
diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
index 2c115026a..07e0933e9 100644
--- a/.github/workflows/format.yml
+++ b/.github/workflows/format.yml
@@ -17,7 +17,7 @@ jobs:
       checks: write
       pull-requests: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@latest
         with:
           version: 1