diff --git a/requirements.txt b/requirements.txt
index 0925da1..f3e5f88 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,7 +18,7 @@ Flask==0.12.2
 Flask-Cors==3.0.3
 grpcio==1.8.3
 grpcio-tools==1.8.3
-html5lib==0.9999999
+html5lib==0.999999999
 idna==2.6
 inflection==0.3.1
 itsdangerous==0.24