diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 341460d58..4511c8761 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -34,7 +34,7 @@ jobs:
       - name: Set JULIA_DEBUG environment variable if applicable
         if: ${{ runner.debug == '1' }}
         run: echo "JULIA_DEBUG=ModelPredictiveControl" >> $GITHUB_ENV
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/DocCleanup.yml b/.github/workflows/DocCleanup.yml
index 2867e302f..caf52c189 100644
--- a/.github/workflows/DocCleanup.yml
+++ b/.github/workflows/DocCleanup.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout gh-pages branch
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: gh-pages
 
diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index bb483e456..854395af2 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -13,7 +13,7 @@ jobs:
       contents: write
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: '1'