diff --git a/backEnd/requirements.txt b/backEnd/requirements.txt
old mode 100755
new mode 100644
index ec7bb1a..7bbb622
--- a/backEnd/requirements.txt
+++ b/backEnd/requirements.txt
@@ -2,7 +2,7 @@ wheel==0.34.2
 click==7.1.1
 Flask==1.1.2
 Flask-HTTPAuth==4.0.0
-PyJWT==1.7.1
+PyJWT==2.4.0
 Flask-Limiter==1.2.1
 itsdangerous==1.1.0
 Jinja2==2.11.2