diff --git a/.github/workflows/on-push.yaml b/.github/workflows/on-push.yaml
index 02a310b..7ea0d91 100644
--- a/.github/workflows/on-push.yaml
+++ b/.github/workflows/on-push.yaml
@@ -9,7 +9,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest] # macos-latest is too slow
-        node-version: [20.x, 18.x, 16.x, 14.x]
+        node-version: [20.x, 18.x]
 
     steps:
     - uses: actions/checkout@v2
diff --git a/README.md b/README.md
index 5503d2d..6ff5e5e 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@
 Keep your lambdas warm during winter.
 
 **Requirements:**
-* Node *v14.x* or higher
+* Node *v18.x* or higher
 * Serverless *v3.8* or higher
 * AWS provider