diff --git a/requirements.txt b/requirements.txt
index ec2bfad..9222da3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ flask-restplus==0.13
 Flask-SQLAlchemy==2.4.1
 neo4jrestclient==2.1.1
 base36==0.1.1
-flask==1.1.1
+flask==2.3.2
 Werkzeug==0.16.0
 psycopg2==2.8.4
 orcid==1.0.3