diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index b9726f4d7a..0f853ca96a 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           node-version: 18
           cache: 'npm'
diff --git a/.github/workflows/release-please.yml b/.github/workflows/release-please.yml
index 4e652b17bf..5ab2eb2e7e 100644
--- a/.github/workflows/release-please.yml
+++ b/.github/workflows/release-please.yml
@@ -20,7 +20,7 @@ jobs:
           fetch-depth: 0
 
       - name: Setup Node
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: 18
           registry-url: 'https://registry.npmjs.org'
@@ -63,7 +63,7 @@ jobs:
     environment: npm-publish-environment
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           # Require npm 11.5.1 or later for https://docs.npmjs.com/trusted-publishers.
           node-version: 24
diff --git a/.github/workflows/test-all-versions.yml b/.github/workflows/test-all-versions.yml
index 68c7194299..304b3c6396 100644
--- a/.github/workflows/test-all-versions.yml
+++ b/.github/workflows/test-all-versions.yml
@@ -29,7 +29,7 @@ jobs:
         with:
           fetch-depth: 0
       # Use the same Node.js version used for `release-please` workflow.
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           node-version: 18
       - name: Install
@@ -164,7 +164,7 @@ jobs:
         uses: actions/checkout@v5
         with:
           fetch-depth: 0
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           node-version: ${{ matrix.node }}
       - name: Install
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f2d0d0efba..5b3f64f175 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -22,7 +22,7 @@ jobs:
         with:
           fetch-depth: 0
       # Use the same Node.js version used for `release-please` workflow.
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           node-version: 18
       - name: Install
@@ -193,7 +193,7 @@ jobs:
         uses: actions/checkout@v5
         with:
           fetch-depth: 0
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           node-version: ${{ matrix.node }}
       - name: Install
@@ -238,7 +238,7 @@ jobs:
       - uses: actions/checkout@v5
         with:
           fetch-depth: 0
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           node-version: ${{ matrix.node }}
       - run: npm ci
@@ -281,7 +281,7 @@ jobs:
         uses: actions/checkout@v5
         with:
           fetch-depth: 0
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           node-version: 18
       - name: Install
diff --git a/.github/workflows/update-otel-deps.yaml b/.github/workflows/update-otel-deps.yaml
index b910e4722d..026be1c4be 100644
--- a/.github/workflows/update-otel-deps.yaml
+++ b/.github/workflows/update-otel-deps.yaml
@@ -21,7 +21,7 @@ jobs:
         with:
           token: ${{ steps.otelbot-token.outputs.token }}
 
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           cache: 'npm'
           cache-dependency-path: package-lock.json