diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 88f483f46..e0e037db1 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -9,7 +9,7 @@ jobs:
   deploy:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: cargo install mdbook --version 0.4.40
       - run: cd mdbook && mdbook build
       - uses: JamesIves/github-pages-deploy-action@v4
diff --git a/.github/workflows/miri.yml b/.github/workflows/miri.yml
index 6549c7b2c..0393a0633 100644
--- a/.github/workflows/miri.yml
+++ b/.github/workflows/miri.yml
@@ -9,7 +9,7 @@ jobs:
     name: cargo miri test on ubuntu, rust nightly
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
           toolchain: nightly
diff --git a/.github/workflows/release-plz.yml b/.github/workflows/release-plz.yml
index b7fde4af1..033aa7360 100644
--- a/.github/workflows/release-plz.yml
+++ b/.github/workflows/release-plz.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Install Rust toolchain
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 365a6d534..04c041b3e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -19,7 +19,7 @@ jobs:
     name: cargo test on ${{ matrix.os }}, rust ${{ matrix.toolchain }}
     runs-on: ${{ matrix.os }}-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
           toolchain: ${{ matrix.toolchain }}
@@ -34,7 +34,7 @@ jobs:
     name: Cargo clippy
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
           components: clippy