diff --git a/requirements.txt b/requirements.txt
index 891b5ac..18d9c35 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,6 +17,7 @@ greenlet==0.4.17
 idna==2.10
 itsdangerous==1.1.0
 Jinja2==2.11.2
+lxml==4.6.1
 Mako==1.1.3
 MarkupSafe==1.1.1
 numerize==0.12
@@ -37,6 +38,7 @@ urllib3==1.25.11
 webencodings==0.5.1
 Werkzeug==1.0.1
 WTForms==2.3.3
+youtube-dlc==2020.10.26
 youtube-search-fork==1.2.5
 zope.event==4.5.0
 zope.interface==5.1.2