diff --git a/.changeset/stupid-moles-joke.md b/.changeset/stupid-moles-joke.md
new file mode 100644
index 0000000000..7dee230fa7
--- /dev/null
+++ b/.changeset/stupid-moles-joke.md
@@ -0,0 +1,5 @@
+---
+'@backstage/catalog-client': patch
+---
+
+Avoid using Headers as it is not supported in the backend
diff --git a/packages/catalog-client/src/CatalogClient.ts b/packages/catalog-client/src/CatalogClient.ts
index 83d68742ee..7426aabaac 100644
--- a/packages/catalog-client/src/CatalogClient.ts
+++ b/packages/catalog-client/src/CatalogClient.ts
@@ -191,9 +191,9 @@ export class CatalogClient implements CatalogApi {
     options?: CatalogRequestOptions,
   ): Promise<void> {
     const url = `${await this.discoveryApi.getBaseUrl('catalog')}${path}`;
-    const headers = new Headers(
-      options?.token ? { Authorization: `Bearer ${options.token}` } : {},
-    );
+    const headers: Record<string, string> = options?.token
+      ? { Authorization: `Bearer ${options.token}` }
+      : {};
     const response = await fetch(url, { method, headers });
 
     if (!response.ok) {
@@ -207,9 +207,9 @@ export class CatalogClient implements CatalogApi {
     options?: CatalogRequestOptions,
   ): Promise<any> {
     const url = `${await this.discoveryApi.getBaseUrl('catalog')}${path}`;
-    const headers = new Headers(
-      options?.token ? { Authorization: `Bearer ${options.token}` } : {},
-    );
+    const headers: Record<string, string> = options?.token
+      ? { Authorization: `Bearer ${options.token}` }
+      : {};
     const response = await fetch(url, { method, headers });
 
     if (!response.ok) {
@@ -225,9 +225,9 @@ export class CatalogClient implements CatalogApi {
     options?: CatalogRequestOptions,
   ): Promise<any | undefined> {
     const url = `${await this.discoveryApi.getBaseUrl('catalog')}${path}`;
-    const headers = new Headers(
-      options?.token ? { Authorization: `Bearer ${options.token}` } : {},
-    );
+    const headers: Record<string, string> = options?.token
+      ? { Authorization: `Bearer ${options.token}` }
+      : {};
     const response = await fetch(url, { method, headers });
 
     if (!response.ok) {