diff --git a/requirements.txt b/requirements.txt
index 68a4c4f..fd9f3c7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 absl-py==0.7.1
 bleach==1.5.0
 certifi==2018.8.24
-html5lib==0.9999999
+html5lib==0.99999999
 Markdown==3.0.1
 numpy==1.16.2
 protobuf==3.7.0