diff --git a/requirements.txt b/requirements.txt
index b208721..3495a17 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ dash-table==4.11.1; python_version >= "2.7" and python_full_version < "3.0.0" or
 dash==1.18.1; (python_version >= "2.7" and python_full_version < "3.0.0") or (python_full_version >= "3.3.0")
 flask-assets==2.0
 flask-compress==1.8.0; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.3.0"
-flask-session==0.3.2
+flask-session==0.4.0
 flask-sqlalchemy==2.4.4; (python_version >= "2.7" and python_full_version < "3.0.0") or (python_full_version >= "3.4.0")
 flask==1.1.2; (python_version >= "2.7" and python_full_version < "3.0.0") or (python_full_version >= "3.5.0")
 future==0.18.2; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.3.0"