diff --git a/series_tiempo_ar_api/apps/dump/urls.py b/series_tiempo_ar_api/apps/dump/urls.py
index fefc7a84..633605cf 100644
--- a/series_tiempo_ar_api/apps/dump/urls.py
+++ b/series_tiempo_ar_api/apps/dump/urls.py
@@ -7,6 +7,6 @@
 
 
 urlpatterns = [
-    url(r'^(?P<filename>[^/]*)$', serve_global_dump, name='global_dump'),
-    url(r'^(?P<catalog_id>.*)/(?P<filename>.*)$', serve_catalog_dump, name='catalog_dump')
+    url(r'^(?P<filename>[^/]+)/$', serve_global_dump, name='global_dump'),
+    url(r'^(?P<catalog_id>.+)/(?P<filename>.+)/$', serve_catalog_dump, name='catalog_dump')
 ]