diff --git a/packages/backend-app-api/package.json b/packages/backend-app-api/package.json
index a6ecb5f455..01eaeaecaf 100644
--- a/packages/backend-app-api/package.json
+++ b/packages/backend-app-api/package.json
@@ -48,6 +48,7 @@
     "express-promise-router": "^4.1.0",
     "fs-extra": "10.1.0",
     "helmet": "^6.0.0",
+    "lodash": "^4.17.21",
     "minimatch": "^5.0.0",
     "morgan": "^1.10.0",
     "node-forge": "^1.3.1",
diff --git a/packages/backend-app-api/src/services/implementations/rootHttpRouter/DefaultRootHttpRouter.ts b/packages/backend-app-api/src/services/implementations/rootHttpRouter/DefaultRootHttpRouter.ts
index 2acbb3833a..0a144af494 100644
--- a/packages/backend-app-api/src/services/implementations/rootHttpRouter/DefaultRootHttpRouter.ts
+++ b/packages/backend-app-api/src/services/implementations/rootHttpRouter/DefaultRootHttpRouter.ts
@@ -16,9 +16,10 @@
 
 import { RootHttpRouterService } from '@backstage/backend-plugin-api';
 import { Handler, Router } from 'express';
+import trimEnd from 'lodash/trimEnd';
 
 function normalizePath(path: string): string {
-  return path.replace(/\/*$/, '/');
+  return `${trimEnd(path, '/')}/`;
 }
 
 /**
diff --git a/yarn.lock b/yarn.lock
index 0890ba4386..cdb2142850 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3400,6 +3400,7 @@ __metadata:
     fs-extra: 10.1.0
     helmet: ^6.0.0
     http-errors: ^2.0.0
+    lodash: ^4.17.21
     minimatch: ^5.0.0
     morgan: ^1.10.0
     node-forge: ^1.3.1