diff --git a/internal/vault/client.go b/internal/vault/client.go
index 9bf9d4f..4d12e2f 100644
--- a/internal/vault/client.go
+++ b/internal/vault/client.go
@@ -26,7 +26,7 @@ const (
 	DockerConfigJSONKey     = ".dockerconfigjson"
 	OrgManagementPATKey     = "ORG_MANAGEMENT_PAT"
 	GhcrRegistry            = "ghcr.io"
-	DockerHubRegistry       = "docker.io"
+	DockerHubRegistry       = "https://index.docker.io/v1/"
 )
 
 // DockerConfig represents the structure of a Docker config.json