diff --git a/requirements.txt b/requirements.txt
index 81906c1..82e6c25 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ astor==0.6.2
 bleach==1.5.0
 gast==0.2.0
 grpcio==1.11.0
-html5lib==0.9999999
+html5lib==0.999999999
 Keras==2.1.5
 Markdown==2.6.11
 numpy==1.14.2