diff --git a/requirements.txt b/requirements.txt
index 90d5382..0350764 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -38,7 +38,7 @@ google-auth-httplib2==0.0.3
 google-images-download==2.3.0
 grpcio==1.15.0
 h5py==2.8.0
-html5lib==0.9999999
+html5lib==0.999999999
 httplib2==0.11.3
 humanize==0.5.1
 idna==2.7