diff --git a/src/requirements/production.txt b/src/requirements/production.txt
index b67a7fb14..8ec953b74 100644
--- a/src/requirements/production.txt
+++ b/src/requirements/production.txt
@@ -22,7 +22,7 @@ inlinestyler==0.2.*
 
 # Deployment / static file compilation requirements
 BeautifulSoup4
-html5lib
+html5lib<0.99999999,>=0.999  # version requirement by bleach
 slimit
 lxml
 static3==0.6.1