diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 0583a6696..e409adf64 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -8,7 +8,7 @@
 			"version": "8.9.2"
 		},
 		"ghcr.io/devcontainers/features/node:1": {
-			"version": "20.5.1"
+			"version": "20.10.0"
 		}
 	},
 	"forwardPorts": [3000],
diff --git a/.github/workflows/get-api-diff.yml b/.github/workflows/get-api-diff.yml
index e6de226e6..281e2058a 100644
--- a/.github/workflows/get-api-diff.yml
+++ b/.github/workflows/get-api-diff.yml
@@ -18,7 +18,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.5.1]
+        node-version: [20.10.0]
         api-json-name: [api-base.json, api-head.json]
         include:
           - api-json-name: api-base.json
diff --git a/.github/workflows/test-backend.yml b/.github/workflows/test-backend.yml
index cbf027562..6e8327ca0 100644
--- a/.github/workflows/test-backend.yml
+++ b/.github/workflows/test-backend.yml
@@ -13,7 +13,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.5.1]
+        node-version: [20.10.0]
 
     services:
       postgres:
diff --git a/.github/workflows/test-frontend.yml b/.github/workflows/test-frontend.yml
index 9575e22d0..50c225189 100644
--- a/.github/workflows/test-frontend.yml
+++ b/.github/workflows/test-frontend.yml
@@ -13,7 +13,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.5.1]
+        node-version: [20.10.0]
 
     steps:
     - uses: actions/checkout@v4.1.1
@@ -51,7 +51,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: [20.5.1]
+        node-version: [20.10.0]
         browser: [chrome]
 
     services:
diff --git a/.github/workflows/test-misskey-js.yml b/.github/workflows/test-misskey-js.yml
index ae1ddf31d..76e170b3e 100644
--- a/.github/workflows/test-misskey-js.yml
+++ b/.github/workflows/test-misskey-js.yml
@@ -16,7 +16,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.5.1]
+        node-version: [20.10.0]
         # 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 d9bfb12be..694fa1a8f 100644
--- a/.github/workflows/test-production.yml
+++ b/.github/workflows/test-production.yml
@@ -16,7 +16,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.5.1]
+        node-version: [20.10.0]
 
     steps:
     - uses: actions/checkout@v4.1.1
diff --git a/.node-version b/.node-version
index 7cc206998..d5a159609 100644
--- a/.node-version
+++ b/.node-version
@@ -1 +1 @@
-20.5.1
+20.10.0
diff --git a/Dockerfile b/Dockerfile
index d397fe01c..028a3976d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # syntax = docker/dockerfile:1.4
 
-ARG NODE_VERSION=20.5.1-bullseye
+ARG NODE_VERSION=20.10.0-bullseye
 
 # build assets & compile TypeScript