diff --git a/requirements.txt b/requirements.txt
index 3633fbd..13b55af 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ dask==0.15.0
 decorator==4.0.11
 enum34==1.1.6
 funcsigs==1.0.2
-html5lib==0.9999999
+html5lib==0.999999999
 idna==2.5
 ipython-genutils==0.2.0
 Keras==2.0.5