diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 67a013267..39e28abe0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -92,7 +92,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        node-version: [18.20.0, 18.x, 20.x, 22.x, 23.x]
+        node-version: [18.0.0, 18.x, 19.x, 20.x, 21.x, 22.x, 23.x]
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v4
@@ -135,7 +135,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        node-version: [18.20.0, 18.x, 20.x, 22.x, 23.x]
+        node-version: [18.0.0, 18.x, 19.x, 20.x, 21.x, 22.x, 23.x]
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v4
diff --git a/package-lock.json b/package-lock.json
index 05306338a..bdbf5c21e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,7 @@
         "@clack/prompts": "^0.9.0",
         "@secretlint/core": "^9.0.0",
         "@secretlint/secretlint-rule-preset-recommend": "^9.0.0",
-        "cli-spinners": "^3.2.0",
+        "cli-spinners": "^2.9.2",
         "clipboardy": "^4.0.0",
         "commander": "^13.0.0",
         "globby": "^14.0.2",
@@ -43,7 +43,7 @@
         "vitest": "^2.1.8"
       },
       "engines": {
-        "node": ">=18.20.0",
+        "node": ">=18.0.0",
         "yarn": ">=1.22.22"
       }
     },
@@ -1851,12 +1851,12 @@
       }
     },
     "node_modules/cli-spinners": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/cli-spinners/-/cli-spinners-3.2.0.tgz",
-      "integrity": "sha512-pXftdQloMZzjCr3pCTIRniDcys6dDzgpgVhAHHk6TKBDbRuP1MkuetTF5KSv4YUutbOPa7+7ZrAJ2kVtbMqyXA==",
+      "version": "2.9.2",
+      "resolved": "https://registry.npmjs.org/cli-spinners/-/cli-spinners-2.9.2.tgz",
+      "integrity": "sha512-ywqV+5MmyL4E7ybXgKys4DugZbX0FC6LnwrhjuykIjnK9k8OQacQ7axGKnjDXWNhns0xot3bZI5h55H8yo9cJg==",
       "license": "MIT",
       "engines": {
-        "node": ">=18.20"
+        "node": ">=6"
       },
       "funding": {
         "url": "https://github.com/sponsors/sindresorhus"
diff --git a/package.json b/package.json
index 7c4b010d2..1e2ca5ca5 100644
--- a/package.json
+++ b/package.json
@@ -63,7 +63,7 @@
     "@clack/prompts": "^0.9.0",
     "@secretlint/core": "^9.0.0",
     "@secretlint/secretlint-rule-preset-recommend": "^9.0.0",
-    "cli-spinners": "^3.2.0",
+    "cli-spinners": "^2.9.2",
     "clipboardy": "^4.0.0",
     "commander": "^13.0.0",
     "globby": "^14.0.2",
@@ -91,7 +91,7 @@
     "vitest": "^2.1.8"
   },
   "engines": {
-    "node": ">=18.20.0",
+    "node": ">=18.0.0",
     "yarn": ">=1.22.22"
   }
 }
diff --git a/website/client/.vitepress/config.mts b/website/client/.vitepress/config.mts
index 57bfbc67e..f21cdb4b4 100644
--- a/website/client/.vitepress/config.mts
+++ b/website/client/.vitepress/config.mts
@@ -62,7 +62,7 @@ export default defineConfig({
     },
     socialLinks: [
       { icon: 'discord', link: 'https://discord.gg/wNYzTwZFku' },
-      { icon: 'github', link: 'https://github.com/yamadashy/repomix' }
+      { icon: 'github', link: 'https://github.com/yamadashy/repomix' },
     ],
     footer: {
       message: 'Released under the MIT License.',
diff --git a/website/client/guide/development/setup.md b/website/client/guide/development/setup.md
index f533b6a88..ac67f2c0e 100644
--- a/website/client/guide/development/setup.md
+++ b/website/client/guide/development/setup.md
@@ -2,7 +2,7 @@
 
 ## Prerequisites
 
-- Node.js ≥ 18.20.0
+- Node.js ≥ 18.0.0
 - Git
 - npm
 
diff --git a/website/client/guide/installation.md b/website/client/guide/installation.md
index 63a25f59c..bb8a4c6ab 100644
--- a/website/client/guide/installation.md
+++ b/website/client/guide/installation.md
@@ -40,7 +40,7 @@ docker run -v ./output:/app -it --rm ghcr.io/yamadashy/repomix --remote yamadash
 
 ## System Requirements
 
-- Node.js: ≥ 18.20.0
+- Node.js: ≥ 18.0.0
 - Git: Required for remote repository processing
 
 ## Verification