diff --git a/lib/modules/datasource/docker/ecr.ts b/lib/modules/datasource/docker/ecr.ts
index 14efd6b655eec8..b3ec0183d19c1d 100644
--- a/lib/modules/datasource/docker/ecr.ts
+++ b/lib/modules/datasource/docker/ecr.ts
@@ -6,7 +6,7 @@ import type { HttpResponse } from '../../../util/http/types';
 import { regEx } from '../../../util/regex';
 import { addSecretForSanitizing } from '../../../util/sanitize';
 
-export const ecrRegex = regEx(/\d+\.dkr\.ecr(-fips)*\.([-a-z0-9]+)\.amazonaws\.com/);
+export const ecrRegex = regEx(/\d+\.dkr\.ecr(?:-fips)?\.([-a-z0-9]+)\.amazonaws\.com/);
 export const ecrPublicRegex = regEx(/public\.ecr\.aws/);
 
 export async function getECRAuthToken(