diff --git a/README.md b/README.md
index 7d7f933..a5de86b 100644
--- a/README.md
+++ b/README.md
@@ -62,18 +62,7 @@ You need to create following
 - Personal access token: https://github.com/settings/tokens/new
 - Token: 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
 
-`CDKSpringPipeline` class`cdk-spring-pipeline-stack.ts`. Dependant on your secret name oauth value is mutable and you can change it in below.
-```typescript
-new codepipelineactions.GitHubSourceAction({
-  actionName: 'GitHub_Source',
-  owner: '<nickname>',
-  repo: '<repo_name>',
-  branch: '<branch>',
-  oauthToken: cdk.SecretValue.secretsManager("<secret_name>"),
-  output: sourceOutput
-})
-```
-Inside of the `gh_token.json` you should pass value as plain text format. ex: `ghp_1234bkLW89212`. [Here](https://github.com/umutykaya/cdk-spring-pipeline/blob/master/assets/docs/github_token.md), it explains to create Github  personal access token. Then, create a Secret Manager resource called `pipeline/secret`.
+`CDKSpringPipeline` class`cdk-spring-pipeline-stack.ts`. Dependant on your secret name oauth value is mutable and you can change it. Inside of the `gh_token.json` you should pass value as plain text format. ex: `ghp_1234bkLW89212`. [Here](https://github.com/umutykaya/cdk-spring-pipeline/blob/master/assets/docs/github_token.md), it explains to create Github  personal access token. Then, create a Secret Manager resource called `pipeline/secret`.
 
 ```bash
 aws secretsmanager create-secret --name pipeline/spring-boot-react \
@@ -87,8 +76,7 @@ aws secretsmanager create-secret --name pipeline/spring-boot-react \
 export myIP='0.0.0.0/0'
 export domainName='subdomain.example.com'
 export certArn='arn:aws:acm:<region>:<account_id>:certificate/<certificate_id>'
-export hostedZoneId='zone_id';
-export instanceIdentifier='spring-postgres'
+export hostedZoneId='zone_id'
 export rdsSecretName='pipeline/rds'
 export owner='repo_owner'
 export repo='repo_name'
diff --git a/lib/cdk-spring-pipeline-stack.ts b/lib/cdk-spring-pipeline-stack.ts
index f2f430e..0623a03 100644
--- a/lib/cdk-spring-pipeline-stack.ts
+++ b/lib/cdk-spring-pipeline-stack.ts
@@ -17,7 +17,6 @@ const myIP = process.env.myIP || '0.0.0.0/0';
 const domainName = process.env.domainName || 'subdomain.example.com';
 const certArn = process.env.certArn || 'arn:aws:acm:<region>:<account_id>:certificate/<certificate_id>';
 const hostedZoneId = process.env.hostedZoneId || 'hosted_zone_id';
-const instanceIdentifier = process.env.instanceIdentifier || 'spring-postgres';
 const rdsSecretName = process.env.rdsSecretName || 'pipeline/rds';
 const owner = process.env.owner || 'umutykaya';
 const repo = process.env.repo || 'spring-boot-react';
@@ -66,7 +65,6 @@ export class CDKSpringPipeline extends cdk.Stack {
     const rdsInstance = new rds.DatabaseInstance(this, 'InstanceWithUsername', {
       engine,
       vpc,
-      instanceIdentifier,
       securityGroups: [DBGroup],
       removalPolicy: cdk.RemovalPolicy.DESTROY,
       deletionProtection: false,
@@ -336,9 +334,10 @@ export class CDKSpringPipeline extends cdk.Stack {
     //OUTPUT
     new cdk.CfnOutput(this, "publicDNS", { value: bastion.instance.instancePublicDnsName });
     new cdk.CfnOutput(this, "instanceID", { value: bastion.instanceId });
-    new cdk.CfnOutput(this, "rdsSecretName", { value: rdsSecretName });
     new cdk.CfnOutput(this, 'LoadBalancerDNS', { value: fargateService.loadBalancer.loadBalancerDnsName });
+    new cdk.CfnOutput(this, "rdsSecretName", { value: rdsSecretName });
     new cdk.CfnOutput(this, 'RDSEndpoint', { value: rdsInstance.dbInstanceEndpointAddress });
+    new cdk.CfnOutput(this, 'RDSIdentifier', { value: rdsInstance.instanceIdentifier });
 
   }
 }
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