diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 0853401..229357b 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     name: stable / fmt
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           submodules: true
       - name: Install stable
@@ -46,7 +46,7 @@ jobs:
         # Get early warning of new lints which are regularly introduced in beta channels.
         toolchain: [stable, beta]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           submodules: true
       - name: Install ${{ matrix.toolchain }}
@@ -66,7 +66,7 @@ jobs:
     runs-on: ubuntu-latest
     name: stable / doc
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           submodules: true
       - name: cargo doc
@@ -77,7 +77,7 @@ jobs:
     runs-on: ubuntu-latest
     name: ubuntu / stable / features
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           submodules: true
       - name: Install stable
@@ -98,7 +98,7 @@ jobs:
         msrv: ["1.85.0"] 
     name: ubuntu / ${{ matrix.msrv }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           submodules: true
       - name: Install ${{ matrix.msrv }}
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index e3474d8..e1b92ea 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -18,7 +18,7 @@ jobs:
         # toolchain
         toolchain: [stable, beta]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           submodules: true
       - name: Install ${{ matrix.toolchain }}