diff --git a/packages/@aws-cdk/aws-lambda/lib/runtime.ts b/packages/@aws-cdk/aws-lambda/lib/runtime.ts
index 3fc1404d1391e..1cf5cfc559668 100644
--- a/packages/@aws-cdk/aws-lambda/lib/runtime.ts
+++ b/packages/@aws-cdk/aws-lambda/lib/runtime.ts
@@ -28,6 +28,7 @@ export class Runtime {
   public static readonly NodeJS810 =    new Runtime('nodejs8.10',     RuntimeFamily.NodeJS, { supportsInlineCode: true });
   public static readonly Python27 =     new Runtime('python2.7',      RuntimeFamily.Python, { supportsInlineCode: true });
   public static readonly Python36 =     new Runtime('python3.6',      RuntimeFamily.Python, { supportsInlineCode: true });
+  public static readonly Python37 =     new Runtime('python3.7',      RuntimeFamily.Python, { supportsInlineCode: true });
   public static readonly Java8 =        new Runtime('java8',          RuntimeFamily.Java);
   public static readonly DotNetCore1 =  new Runtime('dotnetcore1.0',  RuntimeFamily.DotNetCore);
   public static readonly DotNetCore2 =  new Runtime('dotnetcore2.0',  RuntimeFamily.DotNetCore);