diff --git a/pipreqs/mapping b/pipreqs/mapping
index 4c72ea8..b955b3e 100644
--- a/pipreqs/mapping
+++ b/pipreqs/mapping
@@ -787,6 +787,7 @@ monthdelta:MonthDelta
 mopidy:Mopidy
 mopytools:MoPyTools
 mptt:django_mptt
+mpv:python-mpv
 mrbob:mr.bob
 msgpack:msgpack_python
 mutations:aino_mutations
@@ -911,7 +912,6 @@ plone:plone.z3cform
 plonetheme:plonetheme.barceloneta
 png:pypng
 polymorphic:django_polymorphic
-portalocker:ConcurrentLogHandler
 postmark:python_postmark
 powerprompt:bash_powerprompt
 prefetch:django-prefetch