add unresolved dependency

Author: dangost

.DS_Store

@@ -8,6 +8,7 @@ certifi = "==2022.12.7"
 six = ">=1.10"
 python-dateutil = ">=2.5.3"
 urllib3 = ">=1.15.1"
+vistir = "*"
 
 [dev-packages]
 setuptools = ">=21.0.0"