diff --git a/requirements.txt b/requirements.txt
index 8e914fb..345a896 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ cryptography==3.2
 defer==1.0.6
 feedparser==5.1.3
 guacamole==0.9.2
-html5lib==0.999
+html5lib==0.99999999
 httplib2==0.18.0
 idna==2.0
 Jinja2>=2.10.1