diff --git a/.github/workflows/audit.yml b/.github/workflows/audit.yml
index ff4b505..99363e8 100644
--- a/.github/workflows/audit.yml
+++ b/.github/workflows/audit.yml
@@ -27,6 +27,6 @@ jobs:
     name: cargo audit
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: taiki-e/install-action@cargo-audit
       - run: cargo audit
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6cb0038..f8b0315 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -26,7 +26,7 @@ jobs:
           - windows-latest
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@stable
@@ -52,7 +52,7 @@ jobs:
       run:
         working-directory: docs
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: oven-sh/setup-bun@v2
       - name: bun install
         run: bun install --frozen-lockfile
diff --git a/.github/workflows/fuzz.yml b/.github/workflows/fuzz.yml
index 029ff81..770f286 100644
--- a/.github/workflows/fuzz.yml
+++ b/.github/workflows/fuzz.yml
@@ -24,7 +24,7 @@ jobs:
       matrix:
         target: [decode_codec2, checked_block_len]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Install nightly toolchain
         uses: dtolnay/rust-toolchain@nightly
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 79390b8..0adc4e7 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -16,7 +16,7 @@ jobs:
     name: Publish to crates.io
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: dtolnay/rust-toolchain@stable
       - run: cargo publish -p opentimstdf
         continue-on-error: true
@@ -41,7 +41,7 @@ jobs:
           - os: windows-latest
             target: x86_64
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: actions/setup-python@v6
         with:
           python-version: "3.11"
@@ -59,7 +59,7 @@ jobs:
     name: Build sdist
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: PyO3/maturin-action@v1
         with:
           command: sdist
diff --git a/.github/workflows/validate-mzml.yml b/.github/workflows/validate-mzml.yml
index 2624de0..457b7e4 100644
--- a/.github/workflows/validate-mzml.yml
+++ b/.github/workflows/validate-mzml.yml
@@ -28,7 +28,7 @@ jobs:
     name: mzML XSD validation
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@stable