diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 7ea23e314e..fbf959d449 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -5,7 +5,7 @@
 	"workspaceFolder": "/workspace",
 	"features": {
 		"ghcr.io/devcontainers/features/node:1": {
-			"version": "20.12.2"
+			"version": "20.16.0"
 		},
 		"ghcr.io/devcontainers-contrib/features/corepack:1": {}
 	},
diff --git a/.github/workflows/get-api-diff.yml b/.github/workflows/get-api-diff.yml
index 4afafabf2e..af0ab8dde4 100644
--- a/.github/workflows/get-api-diff.yml
+++ b/.github/workflows/get-api-diff.yml
@@ -18,7 +18,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.12.2]
+        node-version: [20.16.0]
         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 22c04ff297..8dd9ed2513 100644
--- a/.github/workflows/on-release-created.yml
+++ b/.github/workflows/on-release-created.yml
@@ -17,7 +17,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.12.2]
+        node-version: [20.16.0]
 
     steps:
       - uses: actions/checkout@v4.1.1
diff --git a/.github/workflows/test-backend.yml b/.github/workflows/test-backend.yml
index bfb79ef090..026550025c 100644
--- a/.github/workflows/test-backend.yml
+++ b/.github/workflows/test-backend.yml
@@ -22,7 +22,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.12.2]
+        node-version: [20.16.0]
 
     services:
       postgres:
@@ -71,7 +71,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.12.2]
+        node-version: [20.16.0]
 
     services:
       postgres:
diff --git a/.github/workflows/test-frontend.yml b/.github/workflows/test-frontend.yml
index c17a9fd387..fcaef52969 100644
--- a/.github/workflows/test-frontend.yml
+++ b/.github/workflows/test-frontend.yml
@@ -26,7 +26,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.12.2]
+        node-version: [20.16.0]
 
     steps:
     - uses: actions/checkout@v4.1.1
@@ -61,7 +61,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: [20.12.2]
+        node-version: [20.16.0]
         browser: [chrome]
 
     services:
diff --git a/.github/workflows/test-misskey-js.yml b/.github/workflows/test-misskey-js.yml
index 6ee67e8735..9ad71919df 100644
--- a/.github/workflows/test-misskey-js.yml
+++ b/.github/workflows/test-misskey-js.yml
@@ -21,7 +21,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.12.2]
+        node-version: [20.16.0]
         # 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 18d02ec030..8ad8a64766 100644
--- a/.github/workflows/test-production.yml
+++ b/.github/workflows/test-production.yml
@@ -16,7 +16,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.12.2]
+        node-version: [20.16.0]
 
     steps:
     - uses: actions/checkout@v4.1.1
diff --git a/.github/workflows/validate-api-json.yml b/.github/workflows/validate-api-json.yml
index 90f2929a25..06e987f27e 100644
--- a/.github/workflows/validate-api-json.yml
+++ b/.github/workflows/validate-api-json.yml
@@ -18,7 +18,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.12.2]
+        node-version: [20.16.0]
 
     steps:
     - uses: actions/checkout@v4.1.1
diff --git a/.node-version b/.node-version
index 87834047a6..8ce7030825 100644
--- a/.node-version
+++ b/.node-version
@@ -1 +1 @@
-20.12.2
+20.16.0
diff --git a/Dockerfile b/Dockerfile
index d6ca6b8cdf..e247bbcd77 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # syntax = docker/dockerfile:1.4
 
-ARG NODE_VERSION=20.12.2-bullseye
+ARG NODE_VERSION=20.16.0-bullseye
 
 # build assets & compile TypeScript