diff --git a/requirements.txt b/requirements.txt
index d20924d..07b20b8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ decorator==4.1.2
 funcsigs==1.0.2
 future==0.16.0
 glob2==0.6
-html5lib==0.9999999
+html5lib==0.999999999
 IDLSave==1.0.0
 imgaug==0.2.5
 Keras==2.0.6