diff --git a/2017/solutions/rllchatbot/requirements.txt b/2017/solutions/rllchatbot/requirements.txt
index d3da83a50..d1e5f52f4 100644
--- a/2017/solutions/rllchatbot/requirements.txt
+++ b/2017/solutions/rllchatbot/requirements.txt
@@ -39,7 +39,7 @@ future==0.16.0
 futures==3.1.1
 gensim==3.1.0
 h5py==2.2.1
-html5lib==0.9999999
+html5lib==0.99999999
 idna==2.6
 imagesize==0.7.1
 ipaddress==1.0.18