diff --git a/.changeset/engine.md b/.changeset/engine.md
new file mode 100644
index 0000000..78a2083
--- /dev/null
+++ b/.changeset/engine.md
@@ -0,0 +1,10 @@
+---
+'@haetae/common': patch
+'@haetae/core': patch
+'@haetae/git': patch
+'@haetae/js': patch
+'@haetae/utils': patch
+'haetae': patch
+---
+
+BREAKING CHANGE: Set `"node": ">=20"` for engine.
diff --git a/.nvmrc b/.nvmrc
index 4b5ebaf..209e3ef 100644
--- a/.nvmrc
+++ b/.nvmrc
@@ -1 +1 @@
-18.6.0
+20
diff --git a/package.json b/package.json
index ac78950..8d17537 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "license": "MIT",
   "private": true,
   "engines": {
-    "node": ">=18.6.0",
+    "node": ">=20",
     "pnpm": ">=8.6.2"
   },
   "packageManager": "pnpm@8.6.2",
diff --git a/packages/cli/package.json b/packages/cli/package.json
index 4d27140..5a587fd 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -6,7 +6,7 @@
   "private": false,
   "type": "module",
   "engines": {
-    "node": ">=16"
+    "node": ">=20"
   },
   "exports": "./dist/index.js",
   "types": "./dist/index.d.ts",
diff --git a/packages/common/package.json b/packages/common/package.json
index e73e07a..79bab1d 100644
--- a/packages/common/package.json
+++ b/packages/common/package.json
@@ -6,7 +6,7 @@
   "private": false,
   "type": "module",
   "engines": {
-    "node": ">=16"
+    "node": ">=20"
   },
   "exports": "./dist/index.js",
   "types": "./dist/index.d.ts",
diff --git a/packages/core/package.json b/packages/core/package.json
index 76dfef7..6c59d0a 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -6,7 +6,7 @@
   "private": false,
   "type": "module",
   "engines": {
-    "node": ">=16"
+    "node": ">=20"
   },
   "exports": "./dist/index.js",
   "types": "./dist/index.d.ts",
diff --git a/packages/docs/pages/getting-started.mdx b/packages/docs/pages/getting-started.mdx
index 2b29116..0c9ad18 100644
--- a/packages/docs/pages/getting-started.mdx
+++ b/packages/docs/pages/getting-started.mdx
@@ -51,7 +51,7 @@ By just a simple config, Haetae can automatically detect the dependency graph an
 
 ## Installation
 
-So, let's install Haetae. (<small>Node 16 or higher is required.</small>)<br/>
+So, let's install Haetae. (<small>Node 20 or higher is required.</small>)<br/>
 It doesn't matter whether your project is new or existing <small>(Haetae can be incrementally adapted)</small>.<br/>
 It's good for monorepo as well. <small>(Guided later in other part of docs.)</small><br/>
 Literally **any project** is proper.
diff --git a/packages/git/package.json b/packages/git/package.json
index 7f32e62..1726a47 100644
--- a/packages/git/package.json
+++ b/packages/git/package.json
@@ -6,7 +6,7 @@
   "private": false,
   "type": "module",
   "engines": {
-    "node": ">=16"
+    "node": ">=20"
   },
   "exports": "./dist/index.js",
   "types": "./dist/index.d.ts",
diff --git a/packages/haetae/package.json b/packages/haetae/package.json
index d081463..ef3c30f 100644
--- a/packages/haetae/package.json
+++ b/packages/haetae/package.json
@@ -6,7 +6,7 @@
   "private": false,
   "type": "module",
   "engines": {
-    "node": ">=16"
+    "node": ">=20"
   },
   "exports": "./dist/index.js",
   "types": "./dist/index.d.ts",
diff --git a/packages/js/package.json b/packages/js/package.json
index 34d3424..0ea0fa1 100644
--- a/packages/js/package.json
+++ b/packages/js/package.json
@@ -6,7 +6,7 @@
   "private": false,
   "type": "module",
   "engines": {
-    "node": ">=16"
+    "node": ">=20"
   },
   "exports": "./dist/index.js",
   "types": "./dist/index.d.ts",
diff --git a/packages/utils/package.json b/packages/utils/package.json
index 0289e3a..f7dd3bd 100644
--- a/packages/utils/package.json
+++ b/packages/utils/package.json
@@ -6,7 +6,7 @@
   "private": false,
   "type": "module",
   "engines": {
-    "node": ">=16"
+    "node": ">=20"
   },
   "exports": "./dist/index.js",
   "types": "./dist/index.d.ts",
diff --git a/test-project/package.json b/test-project/package.json
index 444638c..caf5471 100644
--- a/test-project/package.json
+++ b/test-project/package.json
@@ -6,7 +6,7 @@
   "private": true,
   "type": "module",
   "engines": {
-    "node": ">=16"
+    "node": ">=20"
   },
   "packageManager": "yarn@1.22.1",
   "workspaces": [
diff --git a/test-project/readme.md b/test-project/readme.md
index 4929cf9..7bf5b08 100644
--- a/test-project/readme.md
+++ b/test-project/readme.md
@@ -70,7 +70,7 @@ There is `engines` restriction in package.json, as `subpath imports` is added fr
 // package.json
 {
   "engines": {
-    "node": ">=16"
+    "node": ">=20"
   }
 }
 ```