diff --git a/requirements.txt b/requirements.txt
index 14e07da..91e5194 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-html5lib==0.9999999
+html5lib==0.999999999
 pyflakes==1.6.0
 beautifulsoup4==4.6.0
 flake8==3.4.1