diff --git a/Dockerfile b/Dockerfile
index 638a0d8..b853e02 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Environment setup
-FROM node:20.17.0-alpine
+FROM node:22.12.0-alpine
 LABEL org.opencontainers.image.source https://github.com/GizmoDevelopment/ramune-chat
 WORKDIR /opt/production
 
diff --git a/package.json b/package.json
index e573ef3..ec53ad0 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
   "license": "MIT",
   "private": true,
   "engines": {
-    "node": ">=20.18.0"
+    "node": ">=22.12.0"
   },
   "packageManager": "pnpm@9.14.4",
   "scripts": {
@@ -19,7 +19,7 @@
     "@gizmo-dev/eslint-plugin": "^5.0.6",
     "@types/cors": "^2.8.17",
     "@types/express": "5.0.0",
-    "@types/node": "^20.16.10",
+    "@types/node": "^22.10.1",
     "eslint": "^9.16.0",
     "globals": "^15.13.0",
     "tsc-alias": "^1.8.10",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 60f36e3..83cfa59 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -46,8 +46,8 @@ importers:
         specifier: 5.0.0
         version: 5.0.0
       '@types/node':
-        specifier: ^20.16.10
-        version: 20.17.9
+        specifier: ^22.10.1
+        version: 22.10.1
       eslint:
         specifier: ^9.16.0
         version: 9.16.0
@@ -287,9 +287,6 @@ packages:
   '@types/mime@1.3.5':
     resolution: {integrity: sha512-/pyBZWSLD2n0dcHE3hq8s8ZvcETHtEuF+3E7XVt0Ig2nvsVQXdghHVcEkIWjy9A0wKfTn97a/PSDYohKIlnP/w==}
 
-  '@types/node@20.17.9':
-    resolution: {integrity: sha512-0JOXkRyLanfGPE2QRCwgxhzlBAvaRdCNMcvbd7jFfpmD4eEXll7LRwy5ymJmyeZqk7Nh7eD2LeUyQ68BbndmXw==}
-
   '@types/node@22.10.1':
     resolution: {integrity: sha512-qKgsUwfHZV2WCWLAnVP1JqnpE6Im6h3Y0+fYgMTasNQ7V++CBX5OT1as0g0f+OyubbFqhf6XVNIsmN4IIhEgGQ==}
 
@@ -1400,9 +1397,6 @@ packages:
     engines: {node: '>=14.17'}
     hasBin: true
 
-  undici-types@6.19.8:
-    resolution: {integrity: sha512-ve2KP6f/JnbPBFyobGHuerC9g1FYGn/F8n1LWTwNxCEzd6IfqTwUQcNXgEtmmQ6DlRrC1hrSrBnCZPokRrDHjw==}
-
   undici-types@6.20.0:
     resolution: {integrity: sha512-Ny6QZ2Nju20vw1SRHe3d9jVu6gJ+4e3+MMpqu7pqE5HT6WsTSlce++GQmK5UXS8mzV8DSYHrQH+Xrf2jVcuKNg==}
 
@@ -1719,30 +1713,30 @@ snapshots:
   '@types/body-parser@1.19.5':
     dependencies:
       '@types/connect': 3.4.38
-      '@types/node': 20.17.9
+      '@types/node': 22.10.1
 
   '@types/caseless@0.12.5': {}
 
   '@types/connect@3.4.38':
     dependencies:
-      '@types/node': 20.17.9
+      '@types/node': 22.10.1
 
   '@types/cors@2.8.17':
     dependencies:
-      '@types/node': 20.17.9
+      '@types/node': 22.10.1
 
   '@types/estree@1.0.6': {}
 
   '@types/express-serve-static-core@4.19.6':
     dependencies:
-      '@types/node': 20.17.9
+      '@types/node': 22.10.1
       '@types/qs': 6.9.17
       '@types/range-parser': 1.2.7
       '@types/send': 0.17.4
 
   '@types/express-serve-static-core@5.0.2':
     dependencies:
-      '@types/node': 20.17.9
+      '@types/node': 22.10.1
       '@types/qs': 6.9.17
       '@types/range-parser': 1.2.7
       '@types/send': 0.17.4
@@ -1767,16 +1761,12 @@ snapshots:
 
   '@types/jsonwebtoken@9.0.7':
     dependencies:
-      '@types/node': 20.17.9
+      '@types/node': 22.10.1
 
   '@types/long@4.0.2': {}
 
   '@types/mime@1.3.5': {}
 
-  '@types/node@20.17.9':
-    dependencies:
-      undici-types: 6.19.8
-
   '@types/node@22.10.1':
     dependencies:
       undici-types: 6.20.0
@@ -1788,19 +1778,19 @@ snapshots:
   '@types/request@2.48.12':
     dependencies:
       '@types/caseless': 0.12.5
-      '@types/node': 20.17.9
+      '@types/node': 22.10.1
       '@types/tough-cookie': 4.0.5
       form-data: 2.5.2
 
   '@types/send@0.17.4':
     dependencies:
       '@types/mime': 1.3.5
-      '@types/node': 20.17.9
+      '@types/node': 22.10.1
 
   '@types/serve-static@1.15.7':
     dependencies:
       '@types/http-errors': 2.0.4
-      '@types/node': 20.17.9
+      '@types/node': 22.10.1
       '@types/send': 0.17.4
 
   '@types/tough-cookie@4.0.5': {}
@@ -2801,7 +2791,7 @@ snapshots:
       '@protobufjs/path': 1.1.2
       '@protobufjs/pool': 1.1.0
       '@protobufjs/utf8': 1.1.0
-      '@types/node': 20.17.9
+      '@types/node': 22.10.1
       long: 5.2.3
 
   proxy-addr@2.0.7:
@@ -3012,8 +3002,6 @@ snapshots:
 
   typescript@5.7.2: {}
 
-  undici-types@6.19.8: {}
-
   undici-types@6.20.0: {}
 
   unpipe@1.0.0: {}