diff --git a/requirements.in b/requirements.in
--- a/requirements.in
+++ b/requirements.in
@@ -1,4 +1,5 @@
 Flask-Bootstrap==3.3.5.6
+Flask-HTTPAuth==2.6.0
 Flask-Mail==0.9.1
 Flask-Moment==0.5.1
 Flask-WTF==0.12