diff --git a/requirements-linux.txt b/requirements-linux.txt
index 9e47813..8e94e11 100644
--- a/requirements-linux.txt
+++ b/requirements-linux.txt
@@ -1,5 +1,9 @@
+bcrypt==3.1.7
+cffi==1.14.0
 Click==7.0
 Flask==1.1.1
+Flask-Bcrypt==0.7.1
+Flask-Login==0.5.0
 Flask-SQLAlchemy==2.4.1
 Flask-WTF==0.14.3
 gunicorn==19.9.0
@@ -7,6 +11,8 @@ itsdangerous==1.1.0
 Jinja2==2.10.3
 MarkupSafe==1.1.1
 pkg-resources==0.0.0
+pycparser==2.20
+six==1.14.0
 SQLAlchemy==1.3.11
 Werkzeug==0.16.0
 WTForms==2.2.1