diff --git a/.github/workflows/publish-package.yml b/.github/workflows/publish-package.yml
index 2f72e7d..e5a6034 100644
--- a/.github/workflows/publish-package.yml
+++ b/.github/workflows/publish-package.yml
@@ -19,7 +19,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: "20.12.2"
+          node-version: "20.16.0"
           registry-url: "https://registry.npmjs.org"
       - name: Set version number to environment variable
         run: |
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 9e54deb..239f162 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -31,7 +31,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: "20.12.2"
+          node-version: "20.16.0"
       - run: yarn install
       - run: yarn run lint
 
@@ -41,9 +41,9 @@ jobs:
     strategy:
       matrix:
         node:
-          - "18.12.0"
-          - "18.19.0"
-          - "20.11.0"
+          - "18.18.0"
+          - "18.20.4"
+          - "20.16.0"
     needs:
       - check_test_execution_conditions
     steps:
@@ -63,7 +63,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: "20.12.2"
+          node-version: "20.16.0"
       - run: yarn install
       - run: yarn run build
         env:
diff --git a/.node-version b/.node-version
index 8783404..8ce7030 100644
--- a/.node-version
+++ b/.node-version
@@ -1 +1 @@
-20.12.2
+20.16.0
diff --git a/README.md b/README.md
index 156f61e..5e8c4cb 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ Qiita の Markdown 記法については[Markdown 記法 チートシート](htt
 
 ### 1. 事前準備
 
-Qiita CLI を使うには `Node.js 18.12.0` 以上が必要です。  
+Qiita CLI を使うには `Node.js 18.18.0` 以上が必要です。  
 Node.js をはじめて使う場合はインストールする必要があります。
 
 ### 2. Qiita CLI をインストールする
diff --git a/actions/publish/action.yml b/actions/publish/action.yml
index dbba40c..2cb8600 100644
--- a/actions/publish/action.yml
+++ b/actions/publish/action.yml
@@ -16,7 +16,7 @@ runs:
   steps:
     - uses: actions/setup-node@v4
       with:
-        node-version: "20.12.2"
+        node-version: "20.16.0"
     - name: Install qiita-cli
       run: npm install -g @qiita/qiita-cli@v1.4.4
       shell: bash
diff --git a/package.json b/package.json
index a6534a3..8f6ce29 100644
--- a/package.json
+++ b/package.json
@@ -85,7 +85,7 @@
   },
   "packageManager": "yarn@1.22.19",
   "engines": {
-    "node": ">=18.12.0"
+    "node": ">=18.18.0"
   },
   "lint-staged": {
     "*.{js,ts,tsx}": [