diff --git a/.github/workflows/cache.yml b/.github/workflows/cache.yml
index a98fd24..75b0fce 100644
--- a/.github/workflows/cache.yml
+++ b/.github/workflows/cache.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Anaconda
         uses: conda-incubator/setup-miniconda@v3
         with:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f263a42..e1ba71c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Anaconda
         uses: conda-incubator/setup-miniconda@v3
         with:
diff --git a/.github/workflows/linkcheck.yml b/.github/workflows/linkcheck.yml
index a7beb77..e877323 100644
--- a/.github/workflows/linkcheck.yml
+++ b/.github/workflows/linkcheck.yml
@@ -13,7 +13,7 @@ jobs:
     steps:
       # Checkout the live site (html)
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: gh-pages
       - name: Link Checker
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index fe0e21f..b81ef0a 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Anaconda
         uses: conda-incubator/setup-miniconda@v3
         with: