diff --git a/flask-server/requirements.txt b/flask-server/requirements.txt
index c0d8a20..f170bc1 100644
--- a/flask-server/requirements.txt
+++ b/flask-server/requirements.txt
@@ -12,7 +12,7 @@ Jinja2==2.10.1
 jsonschema==3.0.1
 MarkupSafe==1.1.1
 pycparser==2.19
-PyJWT==1.7.1
+PyJWT==2.4.0
 pymongo==3.8.0
 pyrsistent==0.15.2
 python-dotenv==0.10.3