diff --git a/src/SopsSync.ts b/src/SopsSync.ts
index fcffb5aa..56556eb5 100644
--- a/src/SopsSync.ts
+++ b/src/SopsSync.ts
@@ -352,7 +352,7 @@ export class SopsSync extends Construct {
           role: provider.role,
           sopsFileContent: sopsFileContent.toString(),
         });
-        Permissions.assetBucket(sopsAsset, provider.role);
+        Permissions.assetBucket(this, sopsAsset, provider.role);
         Permissions.encryptionKey(props.encryptionKey, provider.role);
         Permissions.secret(props.secret, provider.role);
         Permissions.parameters(this, props.parameterNames, provider.role);
@@ -559,10 +559,15 @@ export namespace Permissions {
   /**
    * Grants the necessary permissions to read the given asset from S3.
    */
-  export function assetBucket(asset: Asset | undefined, target: IGrantable) {
+  export function assetBucket(context: Construct, asset: Asset | undefined, target: IGrantable) {
     if (asset === undefined) {
       return;
     }
+    const qualifier = context.node.tryGetContext('aws:cdk:qualifier') ?? 'hnb659fds';
+    Key.fromLookup(context, 'AssetBucketKey', {
+      aliasName: `alias/cdk-bootstrap/${qualifier}`,
+    }).grantEncrypt(target);
+
     asset.bucket.grantRead(target);
   }
 }
diff --git a/test/secret-asset.integ.ts b/test/secret-asset.integ.ts
index bdfa441b..3ee1e21c 100644
--- a/test/secret-asset.integ.ts
+++ b/test/secret-asset.integ.ts
@@ -1,10 +1,18 @@
-import { App, SecretValue, Stack } from 'aws-cdk-lib';
+import { App, DefaultStackSynthesizer, SecretValue, Stack } from 'aws-cdk-lib';
 import { Code, Function, Runtime } from 'aws-cdk-lib/aws-lambda';
 import { SopsSecret, UploadType } from '../src/index';
 
 const app = new App();
 
-const stack = new Stack(app, 'SecretIntegrationAsset');
+const stack = new Stack(app, 'SecretIntegrationAsset', {
+  synthesizer: new DefaultStackSynthesizer({
+    qualifier: 'integ',
+  }),
+  env: {
+    account: '123456789',
+    region: 'us-east-1',
+  }
+});
 
 new SopsSecret(stack, 'SopsSecretJSON', {
   sopsFilePath: 'test-secrets/json/sopsfile.enc-age.json',