diff --git a/.github/actions/setup-node-yarn/action.yml b/.github/actions/setup-node-yarn/action.yml
index 663f144..68015db 100644
--- a/.github/actions/setup-node-yarn/action.yml
+++ b/.github/actions/setup-node-yarn/action.yml
@@ -7,7 +7,7 @@ runs:
     - name: Set up Node.js
       uses: actions/setup-node@949feb2413d6458794dcd2491c4babbbce0c15c1 # v7.1.0
       with:
-        node-version: 22
+        node-version: 26
         cache: yarn
 
     - name: Enable Corepack
diff --git a/package.json b/package.json
index d1e4f31..4839e95 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "version": "1.0.0",
   "private": true,
   "engines": {
-    "node": "22 || 24"
+    "node": "22 || 24 || 26"
   },
   "scripts": {
     "start": "backstage-cli repo start",
diff --git a/packages/backend/Dockerfile b/packages/backend/Dockerfile
index cb0a779..f7aa776 100644
--- a/packages/backend/Dockerfile
+++ b/packages/backend/Dockerfile
@@ -7,7 +7,7 @@
 # See https://backstage.io/docs/deployment/docker#multi-stage-build
 
 # Stage 1 - Create yarn install skeleton layer
-FROM node:24.22.2-trixie-slim AS packages
+FROM node:26.13.0-trixie-slim AS packages
 
 WORKDIR /app
 COPY backstage.json package.json yarn.lock ./
@@ -21,7 +21,9 @@ COPY plugins plugins
 RUN find packages \! -name "package.json" -mindepth 2 -maxdepth 2 -exec rm -rf {} \+
 
 # Stage 2 - Install dependencies and build packages
-FROM node:24.22.2-trixie-slim AS build
+FROM node:26.13.0-trixie-slim AS build
+
+RUN npm install -g yarn@1.22.22
 
 # Set Python interpreter for `node-gyp` to use
 ENV PYTHON=/usr/bin/python3
@@ -59,7 +61,9 @@ RUN mkdir packages/backend/dist/skeleton packages/backend/dist/bundle \
     && tar xzf packages/backend/dist/bundle.tar.gz -C packages/backend/dist/bundle
 
 # Stage 3 - Build the actual backend image and install production dependencies
-FROM node:24.22.2-trixie-slim
+FROM node:26.13.0-trixie-slim
+
+RUN npm install -g yarn@1.22.22
 
 # Set Python interpreter for `node-gyp` to use
 ENV PYTHON=/usr/bin/python3