diff --git a/e2e/fastify.e2e-spec.ts b/e2e/fastify.e2e-spec.ts
index c7da7695e..cdf3bb4f2 100644
--- a/e2e/fastify.e2e-spec.ts
+++ b/e2e/fastify.e2e-spec.ts
@@ -27,8 +27,8 @@ describe('Fastify Swagger', () => {
       .addBearerAuth()
       .addOAuth2()
       .addApiKey()
-      .addApiKey({ type: 'apiKey' }, 'key1')
-      .addApiKey({ type: 'apiKey' }, 'key2')
+      .addApiKey({}, 'key1')
+      .addApiKey({}, 'key2')
       .addCookieAuth()
       .addSecurityRequirements('bearer')
       .addSecurityRequirements({ basic: [], cookie: [] });
diff --git a/e2e/validate-schema.e2e-spec.ts b/e2e/validate-schema.e2e-spec.ts
index ca1ea0a08..18bd44626 100644
--- a/e2e/validate-schema.e2e-spec.ts
+++ b/e2e/validate-schema.e2e-spec.ts
@@ -35,8 +35,8 @@ describe('Validate OpenAPI schema', () => {
       .addBearerAuth()
       .addOAuth2()
       .addApiKey()
-      .addApiKey({ type: 'apiKey' }, 'key1')
-      .addApiKey({ type: 'apiKey' }, 'key2')
+      .addApiKey({}, 'key1')
+      .addApiKey({}, 'key2')
       .addCookieAuth()
       .addSecurityRequirements('bearer')
       .addSecurityRequirements({ basic: [], cookie: [] })
diff --git a/lib/document-builder.ts b/lib/document-builder.ts
index 0be9a8c8f..7ac21447a 100644
--- a/lib/document-builder.ts
+++ b/lib/document-builder.ts
@@ -3,7 +3,10 @@ import { isString, isUndefined, negate, pickBy } from 'lodash';
 import { buildDocumentBase } from './fixtures/document.base';
 import { OpenAPIObject } from './interfaces';
 import {
+  ApiKeySchemeObject,
   ExternalDocumentationObject,
+  HttpSchemeObject,
+  OAuth2SchemeObject,
   SecurityRequirementObject,
   SecuritySchemeObject,
   ServerVariableObject,
@@ -110,12 +113,11 @@ export class DocumentBuilder {
   }
 
   public addBearerAuth(
-    options: SecuritySchemeObject = {
-      type: 'http'
-    },
+    options: Partial<Omit<HttpSchemeObject, 'type'>> = {},
     name = 'bearer'
   ): this {
     this.addSecurity(name, {
+      type: 'http',
       scheme: 'bearer',
       bearerFormat: 'JWT',
       ...options
@@ -124,9 +126,7 @@ export class DocumentBuilder {
   }
 
   public addOAuth2(
-    options: SecuritySchemeObject = {
-      type: 'oauth2'
-    },
+    options: Partial<Omit<OAuth2SchemeObject, 'type'>> = {},
     name = 'oauth2'
   ): this {
     this.addSecurity(name, {
@@ -137,30 +137,26 @@ export class DocumentBuilder {
     return this;
   }
 
-  public addApiKey(
-    options: SecuritySchemeObject = {
-      type: 'apiKey'
-    },
-    name = 'api_key'
+  public addBasicAuth(
+    options: Partial<Omit<HttpSchemeObject, 'type'>> = {},
+    name = 'basic'
   ): this {
     this.addSecurity(name, {
-      type: 'apiKey',
-      in: 'header',
-      name,
+      type: 'http',
+      scheme: 'basic',
       ...options
     });
     return this;
   }
 
-  public addBasicAuth(
-    options: SecuritySchemeObject = {
-      type: 'http'
-    },
-    name = 'basic'
+  public addApiKey(
+    options: Partial<Omit<ApiKeySchemeObject, 'type'>> = {},
+    name = 'api_key'
   ): this {
     this.addSecurity(name, {
-      type: 'http',
-      scheme: 'basic',
+      type: 'apiKey',
+      in: 'header',
+      name,
       ...options
     });
     return this;
@@ -168,9 +164,7 @@ export class DocumentBuilder {
 
   public addCookieAuth(
     cookieName = 'connect.sid',
-    options: SecuritySchemeObject = {
-      type: 'apiKey'
-    },
+    options: Partial<Omit<ApiKeySchemeObject, 'type'>> = {},
     securityName = 'cookie'
   ): this {
     this.addSecurity(securityName, {
diff --git a/lib/interfaces/open-api-spec.interface.ts b/lib/interfaces/open-api-spec.interface.ts
index 277da4f9f..719dbc1f7 100644
--- a/lib/interfaces/open-api-spec.interface.ts
+++ b/lib/interfaces/open-api-spec.interface.ts
@@ -250,16 +250,37 @@ export interface XmlObject {
 }
 
 export type SecuritySchemeType = 'apiKey' | 'http' | 'oauth2' | 'openIdConnect';
+export type ApiKeyLocation = 'query' | 'header' | 'cookie';
 
-export interface SecuritySchemeObject {
-  type: SecuritySchemeType;
+export type SecuritySchemeObject =
+  | ApiKeySchemeObject
+  | HttpSchemeObject
+  | OAuth2SchemeObject
+  | OpenIdConnectSchemeObject;
+
+export interface ApiKeySchemeObject {
+  type: 'apiKey';
   description?: string;
-  name?: string;
-  in?: string;
-  scheme?: string;
+  name: string;
+  in: ApiKeyLocation;
+}
+
+export interface HttpSchemeObject {
+  type: 'http';
+  description?: string;
+  scheme: string;
   bearerFormat?: string;
-  flows?: OAuthFlowsObject;
-  openIdConnectUrl?: string;
+}
+export interface OAuth2SchemeObject {
+  type: 'oauth2';
+  description?: string;
+  flows: OAuthFlowsObject;
+}
+
+export interface OpenIdConnectSchemeObject {
+  type: 'openIdConnect';
+  description?: string;
+  openIdConnectUrl: string;
 }
 
 export interface OAuthFlowsObject {