diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c42baf4..c6bc9d6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,7 +25,7 @@ jobs:
 
       - uses: actions/setup-node@v6
         with:
-          node-version: 20
+          node-version: 24
           cache: npm
 
       - run: npm ci
@@ -56,7 +56,7 @@ jobs:
       - uses: actions/checkout@v6
       - uses: actions/setup-node@v6
         with:
-          node-version: 20
+          node-version: 24
           cache: npm
       - run: npm ci
       - run: npm audit --omit=dev
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index dc8e4d4..149f2de 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -18,7 +18,7 @@ jobs:
 
       - uses: actions/setup-node@v6
         with:
-          node-version: 20
+          node-version: 24
           cache: npm
 
       - run: npm ci
diff --git a/.nvmrc b/.nvmrc
index 209e3ef..a45fd52 100644
--- a/.nvmrc
+++ b/.nvmrc
@@ -1 +1 @@
-20
+24
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0d62644..bd6474f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,9 @@ to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+### Changed
+- Bump the action runtime from Node 20 to Node 24 (`runs.using: node24`). Node 20 actions are deprecated by GitHub and will be force-defaulted to Node 24 on June 2, 2026, with Node 20 removed from the runner on September 16, 2026. The build target, CI matrix, `engines.node`, and `.nvmrc` are aligned to Node 24.
+
 ## [1.0.0] — 2026-05-02
 
 ### Added
diff --git a/README.md b/README.md
index dff80e1..1949fe2 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ Deploy a [Spice.ai Cloud](https://spice.ai) app from any GitHub workflow using O
 - **One step, full lifecycle** — resolve or create the app, push your `spicepod.yaml`, upsert app secrets, trigger the deployment, and (optionally) wait for it to finish.
 - **Post-deploy smoke tests** — verify the freshly-deployed runtime answers SQL, NSQL, search, chat-completion, and MCP requests before declaring the workflow green. SQL/NSQL/health probes use the official [`@spiceai/spice` SDK](https://www.npmjs.com/package/@spiceai/spice).
 - **Tags, region, replicas, channel** — all the dials you'd expect, plus deployment metadata (`branch`, `commit_sha`, `commit_message`) auto-populated from the GitHub event.
-- **Cross-platform** — Node 20 JavaScript action; runs on `ubuntu-latest`, `macos-latest`, and `windows-latest` runners.
+- **Cross-platform** — Node 24 JavaScript action; runs on `ubuntu-latest`, `macos-latest`, and `windows-latest` runners.
 
 ## Quickstart
 
@@ -238,7 +238,7 @@ The Action job step summary records the deployment metadata and a per-probe pass
 
 ## Compatibility
 
-- Runs on `ubuntu-latest`, `macos-latest`, and `windows-latest` (Node 20 JavaScript action).
+- Runs on `ubuntu-latest`, `macos-latest`, and `windows-latest` (Node 24 JavaScript action).
 - Bundles the `@spiceai/spice` SDK in HTTP mode — no Apache Arrow Flight gRPC dependencies are required at runtime.
 - Compatible with self-hosted runners that allow outbound HTTPS to `spice.ai`, `api.spice.ai`, and the regional `*-prod-aws-data.spiceai.io` host.
 
diff --git a/action.yml b/action.yml
index 62620b9..155a02f 100644
--- a/action.yml
+++ b/action.yml
@@ -189,5 +189,5 @@ outputs:
     description: JSON array of `{ name, ok, durationMs, detail?, error? }` for each runtime probe.
 
 runs:
-  using: node20
+  using: node24
   main: dist/index.js
diff --git a/package.json b/package.json
index 588ea07..4ef3601 100644
--- a/package.json
+++ b/package.json
@@ -11,10 +11,10 @@
     "url": "https://github.com/spicehq/spice-cloud-deploy-action.git"
   },
   "engines": {
-    "node": ">=20"
+    "node": ">=24"
   },
   "scripts": {
-    "build": "esbuild src/main.ts --bundle --platform=node --target=node20 --outfile=dist/index.js --sourcemap --minify",
+    "build": "esbuild src/main.ts --bundle --platform=node --target=node24 --outfile=dist/index.js --sourcemap --minify",
     "lint": "biome check src __tests__",
     "format": "biome format --write src __tests__",
     "test": "vitest run",