diff --git a/.github/workflows/example-node-version.yml b/.github/workflows/example-node-version.yml
index b0d989f..a9094b4 100644
--- a/.github/workflows/example-node-version.yml
+++ b/.github/workflows/example-node-version.yml
@@ -4,7 +4,7 @@ jobs:
   test:
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       # pick the Node version to use and install it
       # https://github.com/actions/setup-node
       - uses: actions/setup-node@v3
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c213f23..f268ad2 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -10,7 +10,7 @@ jobs:
     name: Build and test on ${{ matrix.os }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       # caching NPM dependencies
       # https://github.com/actions/cache/blob/master/examples.md#node---npm
diff --git a/README.md b/README.md
index c365db1..008711e 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Build and test
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: bahmutov/npm-install@v1
       - run: npm t
 ```
@@ -60,7 +60,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Build and test
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: bahmutov/npm-install@v1
         with:
@@ -90,7 +90,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Build and test
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: bahmutov/npm-install@v1
         with:
           working-directory: |
@@ -171,7 +171,7 @@ The first cache will have key `npm-tool-a-...` and the second cache will have ke
 If you need to use a specific Node version, use the [actions/setup-node](https://github.com/actions/setup-node) before installing the dependencies.
 
 ```yml
-- uses: actions/checkout@v3
+- uses: actions/checkout@v4
   # pick the Node version to use and install it
   # https://github.com/actions/setup-node
   - uses: actions/setup-node@v3