diff --git a/requirements.txt b/requirements.txt
index 509e0b2..28c4919 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ decorator==4.3.0
 gast==0.2.0
 grpcio==1.11.0
 h5py==2.7.1
-html5lib==0.9999999
+html5lib==0.99999999
 idna==2.7
 ipykernel==4.8.2
 ipython==6.3.1