diff --git a/requirements.txt b/requirements.txt
index 4cf7702..a87ae62 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,8 @@
 Flask==0.8
-Flask-Login==0.1
-Flask-Principal==0.2
-Flask-Script==0.3.2
-Flask-WTF==0.5.4
-passlib==1.5.3
+Flask-Login==0.1.3
+Flask-Mail>=0.7.3
+Flask-Principal>=0.3.3
+Flask-Script==0.5.3
+Flask-WTF>=0.8
+itsdangerous>=0.17
+passlib==1.6.1