diff --git a/.changeset/nice-schools-remember.md b/.changeset/nice-schools-remember.md
new file mode 100644
index 0000000000..aa034a95a3
--- /dev/null
+++ b/.changeset/nice-schools-remember.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-adr': patch
+---
+
+Use `fetchApi` instead of raw `fetch` in order to pass auth header if necessary.
diff --git a/plugins/adr/src/api/AdrClient.ts b/plugins/adr/src/api/AdrClient.ts
index da1adc04e4..9b85e8680d 100644
--- a/plugins/adr/src/api/AdrClient.ts
+++ b/plugins/adr/src/api/AdrClient.ts
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-import { DiscoveryApi } from '@backstage/core-plugin-api';
+import { DiscoveryApi, FetchApi } from '@backstage/core-plugin-api';
 import { AdrApi, AdrListResult, AdrReadResult } from './types';
 
 /**
@@ -24,6 +24,7 @@ import { AdrApi, AdrListResult, AdrReadResult } from './types';
  */
 export interface AdrClientOptions {
   discoveryApi: DiscoveryApi;
+  fetchApi: FetchApi;
 }
 
 const readEndpoint = 'file';
@@ -36,9 +37,11 @@ const listEndpoint = 'list';
  */
 export class AdrClient implements AdrApi {
   private readonly discoveryApi: DiscoveryApi;
+  private readonly fetchApi: FetchApi;
 
   constructor(options: AdrClientOptions) {
     this.discoveryApi = options.discoveryApi;
+    this.fetchApi = options.fetchApi;
   }
 
   private async fetchAdrApi<T>(endpoint: string, fileUrl: string): Promise<T> {
@@ -47,7 +50,7 @@ export class AdrClient implements AdrApi {
       fileUrl,
     )}`;
 
-    const result = await fetch(targetUrl);
+    const result = await this.fetchApi.fetch(targetUrl);
     const data = await result.json();
 
     if (!result.ok) {
diff --git a/plugins/adr/src/plugin.ts b/plugins/adr/src/plugin.ts
index 05e4adec4a..d173ef5d78 100644
--- a/plugins/adr/src/plugin.ts
+++ b/plugins/adr/src/plugin.ts
@@ -20,6 +20,7 @@ import {
   createPlugin,
   createRoutableExtension,
   discoveryApiRef,
+  fetchApiRef,
 } from '@backstage/core-plugin-api';
 import { createSearchResultListItemExtension } from '@backstage/plugin-search-react';
 import { rootRouteRef } from './routes';
@@ -36,9 +37,10 @@ export const adrPlugin = createPlugin({
       api: adrApiRef,
       deps: {
         discoveryApi: discoveryApiRef,
+        fetchApi: fetchApiRef,
       },
-      factory({ discoveryApi }) {
-        return new AdrClient({ discoveryApi });
+      factory({ discoveryApi, fetchApi }) {
+        return new AdrClient({ discoveryApi, fetchApi });
       },
     }),
   ],