diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5da3b143b..54764beb0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 - Integrated dividend into the transaction point concept in the portfolio service
+- Removed the environment variable `WEB_AUTH_RP_ID`
 
 ## 2.61.1 - 2024-03-06
 
diff --git a/apps/api/src/app/auth/web-auth.service.ts b/apps/api/src/app/auth/web-auth.service.ts
index a6e76ffbb..961bbe9a7 100644
--- a/apps/api/src/app/auth/web-auth.service.ts
+++ b/apps/api/src/app/auth/web-auth.service.ts
@@ -41,7 +41,7 @@ export class WebAuthService {
   ) {}
 
   get rpID() {
-    return this.configurationService.get('WEB_AUTH_RP_ID');
+    return new URL(this.configurationService.get('ROOT_URL')).hostname;
   }
 
   get expectedOrigin() {
diff --git a/apps/api/src/services/configuration/configuration.service.ts b/apps/api/src/services/configuration/configuration.service.ts
index eb82be418..507e4a375 100644
--- a/apps/api/src/services/configuration/configuration.service.ts
+++ b/apps/api/src/services/configuration/configuration.service.ts
@@ -3,7 +3,7 @@ import { DEFAULT_ROOT_URL } from '@ghostfolio/common/config';
 
 import { Injectable } from '@nestjs/common';
 import { DataSource } from '@prisma/client';
-import { bool, cleanEnv, host, json, num, port, str } from 'envalid';
+import { bool, cleanEnv, host, json, num, port, str, url } from 'envalid';
 
 @Injectable()
 export class ConfigurationService {
@@ -48,14 +48,13 @@ export class ConfigurationService {
       REDIS_PASSWORD: str({ default: '' }),
       REDIS_PORT: port({ default: 6379 }),
       REQUEST_TIMEOUT: num({ default: 2000 }),
-      ROOT_URL: str({ default: DEFAULT_ROOT_URL }),
+      ROOT_URL: url({ default: DEFAULT_ROOT_URL }),
       STRIPE_PUBLIC_KEY: str({ default: '' }),
       STRIPE_SECRET_KEY: str({ default: '' }),
       TWITTER_ACCESS_TOKEN: str({ default: 'dummyAccessToken' }),
       TWITTER_ACCESS_TOKEN_SECRET: str({ default: 'dummyAccessTokenSecret' }),
       TWITTER_API_KEY: str({ default: 'dummyApiKey' }),
-      TWITTER_API_SECRET: str({ default: 'dummyApiSecret' }),
-      WEB_AUTH_RP_ID: host({ default: 'localhost' })
+      TWITTER_API_SECRET: str({ default: 'dummyApiSecret' })
     });
   }
 
diff --git a/apps/api/src/services/interfaces/environment.interface.ts b/apps/api/src/services/interfaces/environment.interface.ts
index 09d0b0e5d..5d3145a28 100644
--- a/apps/api/src/services/interfaces/environment.interface.ts
+++ b/apps/api/src/services/interfaces/environment.interface.ts
@@ -42,5 +42,4 @@ export interface Environment extends CleanedEnvAccessors {
   TWITTER_ACCESS_TOKEN_SECRET: string;
   TWITTER_API_KEY: string;
   TWITTER_API_SECRET: string;
-  WEB_AUTH_RP_ID: string;
 }