diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 781dadc..16f5a43 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [14.x, 15.x, 16.x, 17.x, 18.x]
+        node-version: [20.x]
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
 
     steps:
diff --git a/package.json b/package.json
index 344c30b..f925c18 100644
--- a/package.json
+++ b/package.json
@@ -48,7 +48,7 @@
     "webpack-dev-server": "^4.7.3"
   },
   "engines": {
-    "node": ">=12.0.0"
+    "node": ">=20.0.0"
   },
   "dependencies": {
     "mermaid": "^9.2.2"