diff --git a/packages/@aws-cdk/aws-neptune/lib/cluster.ts b/packages/@aws-cdk/aws-neptune/lib/cluster.ts
index af8061ad6c21e..cf5245d33c476 100644
--- a/packages/@aws-cdk/aws-neptune/lib/cluster.ts
+++ b/packages/@aws-cdk/aws-neptune/lib/cluster.ts
@@ -50,6 +50,10 @@ export class EngineVersion {
    * Neptune engine version 1.0.5.0
    */
   public static readonly V1_0_5_0 = new EngineVersion('1.0.5.0');
+  /**
+   * Neptune engine version 1.1.0.0
+   */
+  public static readonly V1_1_0_0 = new EngineVersion('1.1.0.0');
 
   /**
    * Constructor for specifying a custom engine version
diff --git a/packages/@aws-cdk/aws-neptune/lib/instance.ts b/packages/@aws-cdk/aws-neptune/lib/instance.ts
index 12920fe95444b..b05003dffcb40 100644
--- a/packages/@aws-cdk/aws-neptune/lib/instance.ts
+++ b/packages/@aws-cdk/aws-neptune/lib/instance.ts
@@ -12,6 +12,46 @@ import { IParameterGroup } from './parameter-group';
  */
 export class InstanceType {
 
+  /**
+   * db.r6g.large
+   */
+  public static readonly R6G_LARGE = InstanceType.of('db.r6g.large');
+
+  /**
+   * db.r6g.xlarge
+   */
+  public static readonly R6G_XLARGE = InstanceType.of('db.r6g.xlarge');
+
+  /**
+   * db.r6g.2xlarge
+   */
+  public static readonly R6G_2XLARGE = InstanceType.of('db.r6g.2xlarge');
+
+  /**
+   * db.r6g.4xlarge
+   */
+  public static readonly R6G_4XLARGE = InstanceType.of('db.r6g.4xlarge');
+
+  /**
+   * db.r6g.8xlarge
+   */
+  public static readonly R6G_8XLARGE = InstanceType.of('db.r6g.8xlarge');
+
+  /**
+  * db.r6g.12xlarge
+  */
+  public static readonly R6G_12XLARGE = InstanceType.of('db.r6g.12xlarge');
+
+  /**
+   * db.r6g.16xlarge
+   */
+  public static readonly R6G_16XLARGE = InstanceType.of('db.r6g.16xlarge');
+
+  /**
+   * db.t4g.medium
+   */
+  public static readonly T4G_MEDIUM = InstanceType.of('db.t4g.medium');
+
   /**
    * db.r5.large
    */