diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index beae564..2feb6e2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
 
       - uses: actions/setup-node@v6
         with:
-          node-version: '^24.22.1'
+          node-version: '26.12.1'
           check-latest: true
       - name: Install Transloadit CLI
         run: npm install -g transloadit
@@ -104,7 +104,7 @@ jobs:
 
       - uses: actions/setup-node@v6
         with:
-          node-version: '^24.22.1'
+          node-version: '26.12.1'
           check-latest: true
       - name: Install Transloadit CLI
         run: npm install -g transloadit
diff --git a/Dockerfile b/Dockerfile
index c5787cf..a1c10ae 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 # syntax=docker/dockerfile:1
 
 ARG PYTHON_VERSION=3.14
-FROM node:24.22.1-bookworm-slim AS node
+FROM node:26.12.1-bookworm-slim AS node
 FROM python:${PYTHON_VERSION}-slim AS base
 
 ENV DEBIAN_FRONTEND=noninteractive \
diff --git a/README.md b/README.md
index c36630d..73c4a8d 100644
--- a/README.md
+++ b/README.md
@@ -134,7 +134,7 @@ scripts/test-in-docker.sh
 This script will:
 
 - build images for the Python versions we test in CI (3.12, 3.13, and 3.14)
-- install Poetry, Node.js 24, and the Transloadit CLI
+- install Poetry, Node.js 26, and the Transloadit CLI
 - pass credentials from `.env` (if present) so end-to-end tests can run against real Transloadit accounts
 
 Signature parity tests use `npx transloadit smart_sig` under the hood, matching the reference implementation used by our other SDKs. Our GitHub Actions workflow also runs the E2E upload and quickstart examples against Python 3.14 on every push/PR using a dedicated Transloadit test account (wired through the `TRANSLOADIT_KEY` and `TRANSLOADIT_SECRET` secrets).