diff --git a/pipenv/patched/pip/_internal/models/search_scope.py b/pipenv/patched/pip/_internal/models/search_scope.py
index 4f531e7e..73c62227 100644
--- a/pipenv/patched/pip/_internal/models/search_scope.py
+++ b/pipenv/patched/pip/_internal/models/search_scope.py
@@ -136,5 +136,5 @@ class SearchScope:
 
         index_urls = self.index_urls
         if project_name in self.index_lookup:
-            index_urls = list(self.index_lookup[project_name])
+            index_urls = [self.index_lookup[project_name]]
         return [mkurl_pypi_url(url) for url in index_urls]
diff --git a/tasks/vendoring/patches/patched/pip_index_safety.patch b/tasks/vendoring/patches/patched/pip_index_safety.patch
index 04698926..3cb7100a 100644
--- a/tasks/vendoring/patches/patched/pip_index_safety.patch
+++ b/tasks/vendoring/patches/patched/pip_index_safety.patch
@@ -93,5 +93,5 @@ index a64af738..0674ed07 100644
 -        return [mkurl_pypi_url(url) for url in self.index_urls]
 +        index_urls = self.index_urls
 +        if project_name in self.index_lookup:
-+            index_urls = list(self.index_lookup[project_name])
++            index_urls = [self.index_lookup[project_name]]
 +        return [mkurl_pypi_url(url) for url in index_urls]