diff --git a/README.md b/README.md
index c40c83b..488f1b4 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ npm install playwright-core playwright-aws-lambda --save
 
 ## Usage
 
-This package works with the `nodejs10.x`, `nodejs12.x`, `nodejs14.x`, `nodejs16.x` and `nodejs18.x` AWS Lambda runtimes
+This package works with the `nodejs10.x`, `nodejs12.x`, `nodejs14.x`, `nodejs16.x`, `nodejs18.x` and `nodejs20.x` AWS Lambda runtimes
 out of the box.
 
 ```javascript
diff --git a/src/util/isLambdaRuntimeEnvironment.ts b/src/util/isLambdaRuntimeEnvironment.ts
index aec1eec..fb5d15b 100644
--- a/src/util/isLambdaRuntimeEnvironment.ts
+++ b/src/util/isLambdaRuntimeEnvironment.ts
@@ -5,5 +5,6 @@ export default function isLambdaRuntimeEnvironment(): boolean {
     'AWS_Lambda_nodejs14.x',
     'AWS_Lambda_nodejs16.x',
     'AWS_Lambda_nodejs18.x',
+    'AWS_Lambda_nodejs20.x',
   ].includes(process.env.AWS_EXECUTION_ENV as string);
 }