diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index ffcd422..ebfdb52 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -43,7 +43,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['18', '20', '22']
+        node-version: ['20', '22', '24']
 
     steps:
       - name: Checkout repository
diff --git a/README.md b/README.md
index 7b3930d..8846bd4 100644
--- a/README.md
+++ b/README.md
@@ -101,7 +101,7 @@ Service Name | Import Path
 
 ## Prerequisites
 * You need an [IBM Cloud][ibm-cloud-onboarding] account.
-* **Node.js >=18**: This SDK is tested with Node.js versions 18 and up. It may work on previous versions but this is not officially supported.
+* **Node.js >=20**: This SDK is tested with Node.js versions 20 and up. It may work on previous versions but this is not officially supported.
 
 [ibm-cloud-onboarding]: http://cloud.ibm.com/registration
 
diff --git a/package.json b/package.json
index b13b51e..27e07bc 100755
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "access": "public"
   },
   "engines": {
-    "node": ">=18.0.0"
+    "node": ">=20.0.0"
   },
   "dependencies": {
     "@types/node": "^18.19.80",