diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 8621a1b..c3a7bc4 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -14,7 +14,7 @@
 	"features": {
 		"ghcr.io/devcontainers-extra/features/go-task:1": {},
 		"ghcr.io/devcontainers/features/node:2": {
-			"version": "25.9.0",
+			"version": "26.13.0",
 			"pnpm": true
 		}
 	},
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a9b8838..6f4e2b3 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -17,7 +17,7 @@ jobs:
       - name: Set up Node.js
         uses: actions/setup-node@v7
         with:
-          node-version: "25.9.0"
+          node-version: "26.12.1"
       - name: Install pnpm
         run: npm install -g pnpm@11.5.0
       - name: Install dependencies
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 92a95df..40424ed 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,6 +1,6 @@
 # syntax=docker.io/docker/dockerfile:1
 
-FROM node:25.9.0-trixie AS base
+FROM node:26.12.1-trixie@sha256:97fa0f1b59035c6072721a88d55be1371c7cb1cc942b521e1cc5c72ec87655f4 AS base
 RUN npm install -g pnpm@11.23.0
 WORKDIR /app
 ENV NEXT_TELEMETRY_DISABLED=1
@@ -24,7 +24,7 @@ COPY . .
 RUN pnpm run "build:${NEXT_BUILD_MODE}"
 
 # 3. Lightweight production image with standalone output only
-FROM node:25.9.0-trixie AS runner
+FROM node:26.12.1-trixie@sha256:97fa0f1b59035c6072721a88d55be1371c7cb1cc942b521e1cc5c72ec87655f4 AS runner
 WORKDIR /app
 
 ENV NODE_ENV=production
diff --git a/docker/dev.Dockerfile b/docker/dev.Dockerfile
index 8a3681c..165097f 100644
--- a/docker/dev.Dockerfile
+++ b/docker/dev.Dockerfile
@@ -1,4 +1,4 @@
-FROM node:25.9.0-trixie AS base
+FROM node:26.12.1-trixie@sha256:97fa0f1b59035c6072721a88d55be1371c7cb1cc942b521e1cc5c72ec87655f4 AS base
 
 RUN npm install -g pnpm@11.23.0
 
diff --git a/package.json b/package.json
index 6461a9c..b416378 100644
--- a/package.json
+++ b/package.json
@@ -111,7 +111,7 @@
 		"typescript": "7.0.2"
 	},
 	"engines": {
-		"node": ">=25.0.0 <26.0.0",
+		"node": ">=25.0.0 <27.0.0",
 		"pnpm": "11.23.0"
 	},
 	"packageManager": "pnpm@11.23.0"