diff --git a/requirements.txt b/requirements.txt
index 817543d..6cc8125 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 Flask>=0.9
-Flask-Login>=0.3.0
+Flask-Login>=0.3.0,<0.4
 Flask-Mail>=0.7.3
 Flask-Principal>=0.3.3
 Flask-WTF>=0.8