diff --git a/packages/aws-cdk-lib/aws-rds/lib/instance-engine.ts b/packages/aws-cdk-lib/aws-rds/lib/instance-engine.ts
index cbe7c9dcbe1db..ba58122252347 100644
--- a/packages/aws-cdk-lib/aws-rds/lib/instance-engine.ts
+++ b/packages/aws-cdk-lib/aws-rds/lib/instance-engine.ts
@@ -1074,6 +1074,8 @@ export class PostgresEngineVersion {
   public static readonly VER_11_19 = PostgresEngineVersion.of('11.19', '11', { s3Import: true, s3Export: true });
   /** Version "11.20". */
   public static readonly VER_11_20 = PostgresEngineVersion.of('11.20', '11', { s3Import: true, s3Export: true });
+  /** Version "11.21". */
+  public static readonly VER_11_21 = PostgresEngineVersion.of('11.21', '11', { s3Import: true, s3Export: true });
 
   /** Version "12" (only a major version, without a specific minor version). */
   public static readonly VER_12 = PostgresEngineVersion.of('12', '12', { s3Import: true });
@@ -1105,6 +1107,8 @@ export class PostgresEngineVersion {
   public static readonly VER_12_14 = PostgresEngineVersion.of('12.14', '12', { s3Import: true, s3Export: true });
   /** Version "12.15". */
   public static readonly VER_12_15 = PostgresEngineVersion.of('12.15', '12', { s3Import: true, s3Export: true });
+  /** Version "12.16". */
+  public static readonly VER_12_16 = PostgresEngineVersion.of('12.16', '12', { s3Import: true, s3Export: true });
 
   /** Version "13" (only a major version, without a specific minor version). */
   public static readonly VER_13 = PostgresEngineVersion.of('13', '13', { s3Import: true, s3Export: true });
@@ -1130,6 +1134,8 @@ export class PostgresEngineVersion {
   public static readonly VER_13_10 = PostgresEngineVersion.of('13.10', '13', { s3Import: true, s3Export: true });
   /** Version "13.11". */
   public static readonly VER_13_11 = PostgresEngineVersion.of('13.11', '13', { s3Import: true, s3Export: true });
+  /** Version "13.12". */
+  public static readonly VER_13_12 = PostgresEngineVersion.of('13.12', '13', { s3Import: true, s3Export: true });
 
   /** Version "14" (only a major version, without a specific minor version). */
   public static readonly VER_14 = PostgresEngineVersion.of('14', '14', { s3Import: true, s3Export: true });
@@ -1149,6 +1155,8 @@ export class PostgresEngineVersion {
   public static readonly VER_14_7 = PostgresEngineVersion.of('14.7', '14', { s3Import: true, s3Export: true });
   /** Version "14.8". */
   public static readonly VER_14_8 = PostgresEngineVersion.of('14.8', '14', { s3Import: true, s3Export: true });
+  /** Version "14.9". */
+  public static readonly VER_14_9 = PostgresEngineVersion.of('14.9', '14', { s3Import: true, s3Export: true });
 
   /** Version "15" (only a major version, without a specific minor version). */
   public static readonly VER_15 = PostgresEngineVersion.of('15', '15', { s3Import: true, s3Export: true });
@@ -1156,6 +1164,8 @@ export class PostgresEngineVersion {
   public static readonly VER_15_2 = PostgresEngineVersion.of('15.2', '15', { s3Import: true, s3Export: true });
   /** Version "15.3". */
   public static readonly VER_15_3 = PostgresEngineVersion.of('15.3', '15', { s3Import: true, s3Export: true });
+  /** Version "15.4". */
+  public static readonly VER_15_4 = PostgresEngineVersion.of('15.4', '15', { s3Import: true, s3Export: true });
 
   /**
    * Create a new PostgresEngineVersion with an arbitrary version.