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 81f022e028ff1..ae6274ab1ee5a 100644
--- a/packages/aws-cdk-lib/aws-rds/lib/instance-engine.ts
+++ b/packages/aws-cdk-lib/aws-rds/lib/instance-engine.ts
@@ -558,6 +558,8 @@ export class MariaDbEngineVersion {
   public static readonly VER_10_11_8 = MariaDbEngineVersion.of('10.11.8', '10.11');
   /** Version "10.11.9". */
   public static readonly VER_10_11_9 = MariaDbEngineVersion.of('10.11.9', '10.11');
+  /** Version "11.4.3". */
+  public static readonly VER_11_4_3 = MariaDbEngineVersion.of('11.4.3', '11.4');
 
   /**
    * Create a new MariaDbEngineVersion with an arbitrary version.
diff --git a/packages/aws-cdk-lib/aws-rds/test/instance-engine.test.ts b/packages/aws-cdk-lib/aws-rds/test/instance-engine.test.ts
index 107ff52094086..e0d4da51136e4 100644
--- a/packages/aws-cdk-lib/aws-rds/test/instance-engine.test.ts
+++ b/packages/aws-cdk-lib/aws-rds/test/instance-engine.test.ts
@@ -296,6 +296,7 @@ describe('instance engine', () => {
       ['10.11.7', rds.MariaDbEngineVersion.VER_10_11_7],
       ['10.11.8', rds.MariaDbEngineVersion.VER_10_11_8],
       ['10.11.9', rds.MariaDbEngineVersion.VER_10_11_9],
+      ['11.4.3', rds.MariaDbEngineVersion.VER_11_4_3],
     ])('is passed correctly for %s', (engineVersion, version) => {
 
       // WHEN