diff --git a/backend/requirements.txt b/backend/requirements.txt
index 62e3d80..cebf2ca 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -8,7 +8,7 @@ colorama==0.2.5
 configobj==4.7.2
 enum34==1.1.6
 Flask==0.11.1
-html5lib==0.999
+html5lib==0.999999999
 idna==2.5
 influxdb==4.1.1
 itsdangerous==0.24