diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index fbf959d449..713c2e5fdd 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -5,7 +5,7 @@
 	"workspaceFolder": "/workspace",
 	"features": {
 		"ghcr.io/devcontainers/features/node:1": {
-			"version": "20.16.0"
+			"version": "22.11.0"
 		},
 		"ghcr.io/devcontainers-contrib/features/corepack:1": {}
 	},
diff --git a/.github/workflows/get-api-diff.yml b/.github/workflows/get-api-diff.yml
index 1bcaa0d9c4..972619ec60 100644
--- a/.github/workflows/get-api-diff.yml
+++ b/.github/workflows/get-api-diff.yml
@@ -17,7 +17,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.16.0]
+        node-version: [22.11.0]
         api-json-name: [api-base.json, api-head.json]
         include:
           - api-json-name: api-base.json
diff --git a/.github/workflows/on-release-created.yml b/.github/workflows/on-release-created.yml
index ffaf7bc038..6258fa693a 100644
--- a/.github/workflows/on-release-created.yml
+++ b/.github/workflows/on-release-created.yml
@@ -17,7 +17,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.16.0]
+        node-version: [22.11.0]
 
     steps:
       - uses: actions/checkout@v4.1.1
diff --git a/.github/workflows/test-backend.yml b/.github/workflows/test-backend.yml
index d95d6676f9..cedcf16ecd 100644
--- a/.github/workflows/test-backend.yml
+++ b/.github/workflows/test-backend.yml
@@ -22,7 +22,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.16.0]
+        node-version: [22.11.0]
 
     services:
       postgres:
@@ -71,7 +71,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.16.0]
+        node-version: [22.11.0]
 
     services:
       postgres:
diff --git a/.github/workflows/test-federation.yml b/.github/workflows/test-federation.yml
index 183ddb6f34..e89cdcb091 100644
--- a/.github/workflows/test-federation.yml
+++ b/.github/workflows/test-federation.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [20.16.0]
+        node-version: [22.11.0]
     steps:
       - uses: actions/checkout@v4
         with:
diff --git a/.github/workflows/test-frontend.yml b/.github/workflows/test-frontend.yml
index c68e1a8ef1..eca596c7c7 100644
--- a/.github/workflows/test-frontend.yml
+++ b/.github/workflows/test-frontend.yml
@@ -26,7 +26,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.16.0]
+        node-version: [22.11.0]
 
     steps:
     - uses: actions/checkout@v4.1.1
@@ -61,7 +61,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: [20.16.0]
+        node-version: [22.11.0]
         browser: [chrome]
 
     services:
diff --git a/.github/workflows/test-misskey-js.yml b/.github/workflows/test-misskey-js.yml
index 63e81f8c92..054c10bf61 100644
--- a/.github/workflows/test-misskey-js.yml
+++ b/.github/workflows/test-misskey-js.yml
@@ -21,7 +21,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.16.0]
+        node-version: [22.11.0]
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
 
     steps:
diff --git a/.github/workflows/test-production.yml b/.github/workflows/test-production.yml
index 0abc09c5a6..11a95ca82f 100644
--- a/.github/workflows/test-production.yml
+++ b/.github/workflows/test-production.yml
@@ -16,7 +16,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.16.0]
+        node-version: [22.11.0]
 
     steps:
     - uses: actions/checkout@v4.1.1
diff --git a/.github/workflows/validate-api-json.yml b/.github/workflows/validate-api-json.yml
index f809af1063..835b2a9a24 100644
--- a/.github/workflows/validate-api-json.yml
+++ b/.github/workflows/validate-api-json.yml
@@ -18,7 +18,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.16.0]
+        node-version: [22.11.0]
 
     steps:
     - uses: actions/checkout@v4.1.1
diff --git a/.node-version b/.node-version
index 8ce7030825..7af24b7ddb 100644
--- a/.node-version
+++ b/.node-version
@@ -1 +1 @@
-20.16.0
+22.11.0
diff --git a/Dockerfile b/Dockerfile
index e21b2a31fc..ee765abe7c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # syntax = docker/dockerfile:1.4
 
-ARG NODE_VERSION=20.16.0-bullseye
+ARG NODE_VERSION=22.11.0-bullseye
 
 # build assets & compile TypeScript