diff --git a/src/lib/app.ts b/src/lib/app.ts
index 6de9ec9fc41e..737d0e970400 100644
--- a/src/lib/app.ts
+++ b/src/lib/app.ts
@@ -193,10 +193,6 @@ export default async function getApp(
     // Setup API routes
     app.use(`${baseUriPath}/`, new IndexRouter(config, services, db).router);
 
-    if (services.openApiService) {
-        services.openApiService.useErrorHandler(app);
-    }
-
     if (process.env.NODE_ENV !== 'production') {
         app.use(errorHandler());
     } else {
diff --git a/src/lib/services/openapi-service.ts b/src/lib/services/openapi-service.ts
index f678bfb413a6..4cec32699074 100644
--- a/src/lib/services/openapi-service.ts
+++ b/src/lib/services/openapi-service.ts
@@ -11,7 +11,6 @@ import type { ApiOperation } from '../openapi/util/api-operation';
 import type { Logger } from '../logger';
 import { validateSchema } from '../openapi/validate';
 import type { IFlagResolver } from '../types';
-import { fromOpenApiValidationErrors } from '../error/bad-data-error';
 
 export class OpenApiService {
     private readonly config: IUnleashConfig;
@@ -60,21 +59,6 @@ export class OpenApiService {
         });
     }
 
-    useErrorHandler(app: Express): void {
-        app.use((err, req, res, next) => {
-            if (err?.status && err.validationErrors) {
-                const apiError = fromOpenApiValidationErrors(
-                    req,
-                    err.validationErrors,
-                );
-
-                res.status(apiError.statusCode).json(apiError);
-            } else {
-                next(err);
-            }
-        });
-    }
-
     respondWithValidation<T, S = SchemaId>(
         status: number,
         res: Response<T>,