diff --git a/.github/workflows/npm-publish.yml b/.github/workflows/npm-publish.yml
index c1303105..ab0921ef 100644
--- a/.github/workflows/npm-publish.yml
+++ b/.github/workflows/npm-publish.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v6
         with:
           node-version: 20
       - run: npm ci
@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v6
         with:
           node-version: 20
           registry-url: https://registry.npmjs.org/
@@ -42,7 +42,7 @@ jobs:
       packages: write
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v6
         with:
           node-version: 20
           registry-url: "https://npm.pkg.github.com"
diff --git a/.github/workflows/test-diagnostics.yaml b/.github/workflows/test-diagnostics.yaml
index a7795077..98ceac44 100644
--- a/.github/workflows/test-diagnostics.yaml
+++ b/.github/workflows/test-diagnostics.yaml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v6
         with:
           node-version: 20
       - run: npm install -g elm
diff --git a/.github/workflows/test-performance.yaml b/.github/workflows/test-performance.yaml
index 4f2f0437..d3b23891 100644
--- a/.github/workflows/test-performance.yaml
+++ b/.github/workflows/test-performance.yaml
@@ -29,7 +29,7 @@ jobs:
           # Relative path under $GITHUB_WORKSPACE to place the repository
           path: "ianmackenzie/elm-geometry"
       - name: Setup for ${{ matrix.node-version }}
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: ${{ matrix.node-version }}
       - name: npm ci
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 928743bd..79ea7e54 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -20,7 +20,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Lint and test with ${{ matrix.node-version }}
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: ${{ matrix.node-version }}
       - name: npm ci, build, lint and test