diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index af953da..7408d9c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -136,7 +136,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '18'
+          node-version: '20'
           cache: 'npm'
           cache-dependency-path: frontend/package-lock.json
 
@@ -215,7 +215,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '18'
+          node-version: '20'
           cache: 'npm'
           cache-dependency-path: frontend/package-lock.json
 
diff --git a/.github/workflows/frontend-tests.yml b/.github/workflows/frontend-tests.yml
index 5ca3961..d6132c6 100644
--- a/.github/workflows/frontend-tests.yml
+++ b/.github/workflows/frontend-tests.yml
@@ -23,7 +23,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '18'
+          node-version: '20'
           cache: 'npm'
           cache-dependency-path: frontend/package-lock.json
       
@@ -56,7 +56,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '18'
+          node-version: '20'
           cache: 'npm'
           cache-dependency-path: frontend/package-lock.json
       
@@ -82,7 +82,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '18'
+          node-version: '20'
           cache: 'npm'
           cache-dependency-path: frontend/package-lock.json
       
diff --git a/frontend/.node-version b/frontend/.node-version
index 3c03207..209e3ef 100644
--- a/frontend/.node-version
+++ b/frontend/.node-version
@@ -1 +1 @@
-18
+20
diff --git a/frontend/CLOUDFLARE_PAGES.md b/frontend/CLOUDFLARE_PAGES.md
index 946c392..6607838 100644
--- a/frontend/CLOUDFLARE_PAGES.md
+++ b/frontend/CLOUDFLARE_PAGES.md
@@ -8,7 +8,7 @@
 - **Build command**: `npm run build`
 - **Build output directory**: `.next`
 - **Root directory**: `frontend`
-- **Node.js version**: 18 (specified in `.node-version`)
+- **Node.js version**: 20 (specified in `.node-version`)
 
 ### Environment Variables
 
diff --git a/frontend/package.json b/frontend/package.json
index 992e79b..d7d7b78 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -7,7 +7,7 @@
     "dev": "next dev",
     "build": "next build",
     "start": "next start",
-    "lint": "next lint",
+    "lint": "eslint \"**/*.{js,jsx,ts,tsx}\"",
     "type-check": "tsc --noEmit",
     "test": "jest",
     "test:watch": "jest --watch",
@@ -41,7 +41,7 @@
     "typescript": "^5.3.3"
   },
   "engines": {
-    "node": ">=18.0.0",
+    "node": ">=20.9.0",
     "npm": ">=9.0.0"
   },
   "keywords": [