diff --git a/requirements.txt b/requirements.txt
index 36a5f6c..e17f9ef 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,7 @@
-Flask-Login==0.1
-Flask-Principal==0.2
-Flask-Script==0.3.2
-Flask-WTF==0.5.4
-passlib=1.5.3
 Flask>=0.9
+Flask-Login>=0.1.3
+Flask-Mail>=0.7.3
+Flask-Principal>=0.3.3
+Flask-WTF>=0.8
+itsdangerous>=0.17
+passlib>=1.6.1