diff --git a/Pipfile.lock b/Pipfile.lock
index 5f00d9c..9d299d4 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -518,6 +518,7 @@
                 "sha256:4e35b956cf45792e4caa5885e69fba00bdbc6ffafbfa020300e549b208ee5ff1",
                 "sha256:63cf8bbe7522de3bf65932fda1d9c2772064ffb3dae62d55932da54b31cb6c86"
             ],
+            "index": "pypi",
             "markers": "python_version >= '3.8'",
             "version": "==0.16.0"
         },