diff --git a/requirements.txt b/requirements.txt
index 4382e0f7ca512e99cff631f6ec0d6543f96aefce..46bda7c98fc2be20cba920afead18d1f73cc3533 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,15 +1,16 @@
-blinker==1.4
 Flask==0.10.1
 Flask-Login==0.2.11
 Flask-Passlib==0.1
 Flask-Principal==0.4.0
 Flask-SQLAlchemy==2.0
 Flask-WTF==0.12
-itsdangerous==0.24
 Jinja2==2.8
 MarkupSafe==0.23
-passlib==1.6.1
 SQLAlchemy==1.0.8
+WTForms==2.0.2
 Werkzeug==0.10.4
+blinker==1.4
+itsdangerous==0.24
+passlib==1.6.1
+psycopg2==2.6.1
 wheel==0.24.0
-WTForms==2.0.2