diff --git a/requirements.txt b/requirements.txt
index a7f317f..94fc85b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ gast==0.2.2
 google-pasta==0.1.7
 grpcio==1.24.1
 h5py==2.10.0
-html5lib==0.9999999
+html5lib==0.999999999
 Keras-Applications==1.0.8
 Keras-Preprocessing==1.1.0
 Markdown==3.1.1