diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bb08c82d..b436532e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -33,7 +33,7 @@ jobs:
     name: "CI tests on node-${{ matrix.node_version }}, ${{ matrix.os }}"
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install Deno
         uses: denoland/setup-deno@v1
diff --git a/.github/workflows/cq.yml b/.github/workflows/cq.yml
index d6482d58..bc61fefa 100644
--- a/.github/workflows/cq.yml
+++ b/.github/workflows/cq.yml
@@ -23,7 +23,7 @@ jobs:
     name: "Code quality checks"
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install pnpm
         uses: pnpm/action-setup@v4
diff --git a/.github/workflows/deno.yml b/.github/workflows/deno.yml
index 52c12396..76eefc1d 100644
--- a/.github/workflows/deno.yml
+++ b/.github/workflows/deno.yml
@@ -18,7 +18,7 @@ jobs:
     name: "Publish to deno.land/x"
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install pnpm
         uses: pnpm/action-setup@v4
@@ -43,7 +43,7 @@ jobs:
         run: pnpm -r --filter=@hattip/graphql --filter=@hattip/compose build
 
       - name: Checkout the Deno release repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: hattipjs/deno-release
           path: _deno
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 3747335c..d99da34a 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -28,7 +28,7 @@ jobs:
     name: "Publish to NPM"
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install pnpm
         uses: pnpm/action-setup@v4