diff --git a/requirements.txt b/requirements.txt
index 2cadd0e..30b98ef 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ futures==3.1.1
 gensim==3.2.0
 gym==0.9.4
 h5py==2.7.1
-html5lib==0.9999999
+html5lib==0.99999999
 idna==2.6
 ipykernel==4.6.1
 ipython==6.2.1