diff --git a/requirements.txt b/requirements.txt
index 9cc2310..a034d15 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ google-resumable-media==0.3.1
 googleapis-common-protos==1.5.3
 grpc-google-iam-v1==0.11.4
 grpcio==1.12.0
-html5lib==0.9999999
+html5lib==0.999999999
 httplib2==0.11.3
 idna==2.6
 ipython==6.4.0