diff --git a/back-end/requirements.txt b/back-end/requirements.txt
index 8a8954e..b00bd8d 100644
--- a/back-end/requirements.txt
+++ b/back-end/requirements.txt
@@ -30,7 +30,7 @@ py==1.5.3
 py2neo==3.1.2
 pycparser==2.18
 Pygments==2.2.0
-PyJWT==1.6.1
+PyJWT==2.4.0
 pytest==3.6.1
 python-engineio==2.3.1
 python-socketio==2.0.0