diff --git a/.github/workflows/deploy_docs.yaml b/.github/workflows/deploy_docs.yaml
index dd749a6..1fcc949 100644
--- a/.github/workflows/deploy_docs.yaml
+++ b/.github/workflows/deploy_docs.yaml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     permissions: write-all
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install uv
         uses: astral-sh/setup-uv@v6
diff --git a/.github/workflows/deploy_marimo.yaml b/.github/workflows/deploy_marimo.yaml
index a7935ea..9ead7d9 100644
--- a/.github/workflows/deploy_marimo.yaml
+++ b/.github/workflows/deploy_marimo.yaml
@@ -20,7 +20,7 @@ jobs:
           - "baec_basetime_single"
           - "baec_basetime_multi"
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install uv
         uses: astral-sh/setup-uv@v6
diff --git a/.github/workflows/lint_test.yaml b/.github/workflows/lint_test.yaml
index cb9a8ed..21de822 100644
--- a/.github/workflows/lint_test.yaml
+++ b/.github/workflows/lint_test.yaml
@@ -29,7 +29,7 @@ jobs:
           - "3.12"
           - "3.13"
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install uv
         uses: astral-sh/setup-uv@v6
@@ -71,7 +71,7 @@ jobs:
     name: Formatting check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           # Full git history is needed to get a proper list of changed test_files within `super-linter`
           fetch-depth: 0
@@ -128,7 +128,7 @@ jobs:
     name: Test docs
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install uv
         uses: astral-sh/setup-uv@v6
diff --git a/.github/workflows/release_pypi.yaml b/.github/workflows/release_pypi.yaml
index 8981154..5df158f 100644
--- a/.github/workflows/release_pypi.yaml
+++ b/.github/workflows/release_pypi.yaml
@@ -21,7 +21,7 @@ jobs:
       id-token: write
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install uv
         uses: astral-sh/setup-uv@v6