diff --git a/pipenv/cli.py b/pipenv/cli.py
index aca100c2..edec03d4 100644
--- a/pipenv/cli.py
+++ b/pipenv/cli.py
@@ -1471,6 +1471,7 @@ def uninstall(
                 )
             )
             package_names = project.parsed_pipfile['dev-packages']
+            package_names = package_names.keys()
             pipfile_remove = False
         else:
             puts(