diff --git a/cloudflare-d1/package.json b/cloudflare-d1/package.json
index 0c73278..5259dc8 100644
--- a/cloudflare-d1/package.json
+++ b/cloudflare-d1/package.json
@@ -15,8 +15,8 @@
     "@react-router/serve": "*",
     "drizzle-orm": "~0.36.3",
     "isbot": "^5.1.17",
-    "react": "^18.3.1",
-    "react-dom": "^18.3.1",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
     "react-router": "*"
   },
   "devDependencies": {
@@ -24,16 +24,16 @@
     "@hiogawa/vite-node-miniflare": "0.1.1",
     "@react-router/dev": "*",
     "@types/node": "^20",
-    "@types/react": "^18.3.12",
-    "@types/react-dom": "^18.3.1",
+    "@types/react": "^19.0.1",
+    "@types/react-dom": "^19.0.1",
     "autoprefixer": "^10.4.20",
     "dotenv-cli": "^7.4.3",
     "drizzle-kit": "~0.28.1",
     "postcss": "^8.4.49",
-    "tailwindcss": "^3.4.15",
-    "typescript": "^5.6.3",
+    "tailwindcss": "^3.4.16",
+    "typescript": "^5.7.2",
     "vite": "^5.4.11",
-    "vite-tsconfig-paths": "^5.1.2",
+    "vite-tsconfig-paths": "^5.1.4",
     "wrangler": "^3.87.0"
   }
 }
diff --git a/cloudflare/package.json b/cloudflare/package.json
index 4701ee4..b3cf292 100644
--- a/cloudflare/package.json
+++ b/cloudflare/package.json
@@ -11,8 +11,8 @@
     "@react-router/node": "*",
     "@react-router/serve": "*",
     "isbot": "^5.1.17",
-    "react": "^18.3.1",
-    "react-dom": "^18.3.1",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
     "react-router": "*"
   },
   "devDependencies": {
@@ -20,14 +20,14 @@
     "@hiogawa/vite-node-miniflare": "0.1.1",
     "@react-router/dev": "*",
     "@types/node": "^20",
-    "@types/react": "^18.3.12",
-    "@types/react-dom": "^18.3.1",
+    "@types/react": "^19.0.1",
+    "@types/react-dom": "^19.0.1",
     "autoprefixer": "^10.4.20",
     "postcss": "^8.4.49",
-    "tailwindcss": "^3.4.15",
-    "typescript": "^5.6.3",
+    "tailwindcss": "^3.4.16",
+    "typescript": "^5.7.2",
     "vite": "^5.4.11",
-    "vite-tsconfig-paths": "^5.1.2",
+    "vite-tsconfig-paths": "^5.1.4",
     "wrangler": "^3.87.0"
   }
 }
diff --git a/default/package.json b/default/package.json
index 0ffa233..0e561fd 100644
--- a/default/package.json
+++ b/default/package.json
@@ -4,27 +4,28 @@
   "scripts": {
     "build": "react-router build",
     "dev": "react-router dev",
-    "start": "react-router-serve ./build/server/index.js",
+    "start": "cross-env NODE_ENV=production react-router-serve ./build/server/index.js",
     "typecheck": "react-router typegen && tsc"
   },
   "dependencies": {
     "@react-router/node": "*",
     "@react-router/serve": "*",
     "isbot": "^5.1.17",
-    "react": "^18.3.1",
-    "react-dom": "^18.3.1",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
     "react-router": "*"
   },
   "devDependencies": {
     "@react-router/dev": "*",
     "@types/node": "^20",
-    "@types/react": "^18.3.12",
-    "@types/react-dom": "^18.3.1",
+    "@types/react": "^19.0.1",
+    "@types/react-dom": "^19.0.1",
     "autoprefixer": "^10.4.20",
+    "cross-env": "^7.0.3",
     "postcss": "^8.4.49",
-    "tailwindcss": "^3.4.15",
-    "typescript": "^5.6.3",
+    "tailwindcss": "^3.4.16",
+    "typescript": "^5.7.2",
     "vite": "^5.4.11",
-    "vite-tsconfig-paths": "^5.1.2"
+    "vite-tsconfig-paths": "^5.1.4"
   }
 }
diff --git a/javascript/package.json b/javascript/package.json
index ec26e0b..ffb2c8e 100644
--- a/javascript/package.json
+++ b/javascript/package.json
@@ -4,21 +4,22 @@
   "scripts": {
     "build": "react-router build",
     "dev": "react-router dev",
-    "start": "react-router-serve ./build/server/index.js"
+    "start": "cross-env NODE_ENV=production react-router-serve ./build/server/index.js"
   },
   "dependencies": {
     "@react-router/node": "*",
     "@react-router/serve": "*",
     "isbot": "^5.1.17",
-    "react": "^18.3.1",
-    "react-dom": "^18.3.1",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
     "react-router": "*"
   },
   "devDependencies": {
     "@react-router/dev": "*",
     "autoprefixer": "^10.4.20",
+    "cross-env": "^7.0.3",
     "postcss": "^8.4.49",
-    "tailwindcss": "^3.4.15",
+    "tailwindcss": "^3.4.16",
     "vite": "^5.4.11"
   }
 }
diff --git a/netlify/package.json b/netlify/package.json
index 9d223c0..6d81334 100644
--- a/netlify/package.json
+++ b/netlify/package.json
@@ -11,24 +11,24 @@
     "@netlify/functions": "2.8.2",
     "@react-router/node": "*",
     "isbot": "^5.1.17",
-    "react": "^18.3.1",
-    "react-dom": "^18.3.1",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
     "react-router": "*"
   },
   "devDependencies": {
     "@mjackson/node-fetch-server": "0.3.0",
     "@react-router/dev": "*",
     "@types/express": "^5.0.0",
-    "@types/react": "^18.3.12",
-    "@types/react-dom": "^18.3.1",
+    "@types/react": "^19.0.1",
+    "@types/react-dom": "^19.0.1",
     "autoprefixer": "^10.4.20",
     "cross-env": "^7.0.3",
     "express": "^4.21.1",
     "netlify-cli": "^17.38.0",
     "postcss": "^8.4.49",
-    "tailwindcss": "^3.4.15",
-    "typescript": "^5.6.3",
+    "tailwindcss": "^3.4.16",
+    "typescript": "^5.7.2",
     "vite": "^5.4.11",
-    "vite-tsconfig-paths": "^5.1.2"
+    "vite-tsconfig-paths": "^5.1.4"
   }
 }
diff --git a/node-custom-server/package.json b/node-custom-server/package.json
index 1f73092..0fa84ee 100644
--- a/node-custom-server/package.json
+++ b/node-custom-server/package.json
@@ -14,8 +14,8 @@
     "express": "^4.21.1",
     "morgan": "^1.10.0",
     "isbot": "^5.1.17",
-    "react": "^18.3.1",
-    "react-dom": "^18.3.1",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
     "react-router": "*"
   },
   "devDependencies": {
@@ -25,14 +25,14 @@
     "@types/express-serve-static-core": "^5.0.1",
     "@types/morgan": "^1.9.9",
     "@types/node": "^20",
-    "@types/react": "^18.3.12",
-    "@types/react-dom": "^18.3.1",
+    "@types/react": "^19.0.1",
+    "@types/react-dom": "^19.0.1",
     "autoprefixer": "^10.4.20",
     "cross-env": "^7.0.3",
     "postcss": "^8.4.49",
-    "tailwindcss": "^3.4.15",
-    "typescript": "^5.6.3",
+    "tailwindcss": "^3.4.16",
+    "typescript": "^5.7.2",
     "vite": "^5.4.11",
-    "vite-tsconfig-paths": "^5.1.2"
+    "vite-tsconfig-paths": "^5.1.4"
   }
 }
diff --git a/node-postgres/package.json b/node-postgres/package.json
index 3ffe442..1321fda 100644
--- a/node-postgres/package.json
+++ b/node-postgres/package.json
@@ -18,8 +18,8 @@
     "isbot": "^5.1.17",
     "morgan": "^1.10.0",
     "postgres": "^3.4.5",
-    "react": "^18.3.1",
-    "react-dom": "^18.3.1",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
     "react-router": "*"
   },
   "devDependencies": {
@@ -30,16 +30,16 @@
     "@types/morgan": "^1.9.9",
     "@types/node": "^20",
     "@types/pg": "^8.11.10",
-    "@types/react": "^18.3.12",
-    "@types/react-dom": "^18.3.1",
+    "@types/react": "^19.0.1",
+    "@types/react-dom": "^19.0.1",
     "autoprefixer": "^10.4.20",
     "dotenv-cli": "^7.4.3",
     "drizzle-kit": "~0.28.1",
     "postcss": "^8.4.49",
-    "tailwindcss": "^3.4.15",
+    "tailwindcss": "^3.4.16",
     "tsx": "^4.19.2",
-    "typescript": "^5.6.3",
+    "typescript": "^5.7.2",
     "vite": "^5.4.11",
-    "vite-tsconfig-paths": "^5.1.2"
+    "vite-tsconfig-paths": "^5.1.4"
   }
 }
diff --git a/vercel/package.json b/vercel/package.json
index ab700cd..5737db9 100644
--- a/vercel/package.json
+++ b/vercel/package.json
@@ -12,22 +12,22 @@
     "@vercel/node": "^3.2.25",
     "express": "^4.21.1",
     "isbot": "^5.1.17",
-    "react": "^18.3.1",
-    "react-dom": "^18.3.1",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
     "react-router": "*"
   },
   "devDependencies": {
     "@react-router/dev": "*",
     "@types/express": "^5.0.0",
     "@types/node": "^20",
-    "@types/react": "^18.3.12",
-    "@types/react-dom": "^18.3.1",
+    "@types/react": "^19.0.1",
+    "@types/react-dom": "^19.0.1",
     "autoprefixer": "^10.4.20",
     "cross-env": "^7.0.3",
     "postcss": "^8.4.49",
-    "tailwindcss": "^3.4.15",
-    "typescript": "^5.6.3",
+    "tailwindcss": "^3.4.16",
+    "typescript": "^5.7.2",
     "vite": "^5.4.11",
-    "vite-tsconfig-paths": "^5.1.2"
+    "vite-tsconfig-paths": "^5.1.4"
   }
 }