diff --git a/packages/aws-cdk-lib/aws-rds/lib/cluster-engine.ts b/packages/aws-cdk-lib/aws-rds/lib/cluster-engine.ts
index 31f22952067a3..53c3ace4aa99f 100644
--- a/packages/aws-cdk-lib/aws-rds/lib/cluster-engine.ts
+++ b/packages/aws-cdk-lib/aws-rds/lib/cluster-engine.ts
@@ -1019,6 +1019,8 @@ export class AuroraPostgresEngineVersion {
   public static readonly VER_16_1 = AuroraPostgresEngineVersion.of('16.1', '16', { s3Import: true, s3Export: true });
   /** Version "16.2". */
   public static readonly VER_16_2 = AuroraPostgresEngineVersion.of('16.2', '16', { s3Import: true, s3Export: true });
+  /** Version "16.3". */
+  public static readonly VER_16_3 = AuroraPostgresEngineVersion.of('16.3', '16', { s3Import: true, s3Export: true });
 
   /**
    * Create a new AuroraPostgresEngineVersion with an arbitrary version.
diff --git a/packages/aws-cdk-lib/aws-rds/test/cluster-engine.test.ts b/packages/aws-cdk-lib/aws-rds/test/cluster-engine.test.ts
index 2d04692d592e5..441881a597991 100644
--- a/packages/aws-cdk-lib/aws-rds/test/cluster-engine.test.ts
+++ b/packages/aws-cdk-lib/aws-rds/test/cluster-engine.test.ts
@@ -106,6 +106,8 @@ describe('cluster engine', () => {
       'aurora-postgresql10');
     expect(DatabaseClusterEngine.auroraPostgres({ version: AuroraPostgresEngineVersion.of('14.3', '14') }).parameterGroupFamily).toEqual(
       'aurora-postgresql14');
+    expect(DatabaseClusterEngine.auroraPostgres({ version: AuroraPostgresEngineVersion.of('16.3', '16') }).parameterGroupFamily).toEqual(
+      'aurora-postgresql16');
   });
 
   test('supported log types', () => {