diff --git a/requirements.txt b/requirements.txt
index 667343ad95..5b13661f5c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 alembic==0.8.7
 bleach==1.4.3
 dataset==0.6.4
-html5lib==0.9999999
+html5lib==0.99999999
 Mako==1.0.4
 MarkupSafe==0.23
 normality==0.2.4