diff --git a/thermos/test100/requirements.txt b/thermos/test100/requirements.txt
index b294656..b59c943 100644
--- a/thermos/test100/requirements.txt
+++ b/thermos/test100/requirements.txt
@@ -12,7 +12,7 @@ defer==1.0.6
 feedparser==5.1.3
 Flask==0.12.2
 guacamole==0.9.2
-html5lib==0.999
+html5lib==0.999999999
 httplib2==0.9.1
 idna==2.0
 isort==4.3.4