diff --git a/sub2/backend/requirements.txt b/sub2/backend/requirements.txt
index 0a4688b..07260fb 100644
--- a/sub2/backend/requirements.txt
+++ b/sub2/backend/requirements.txt
@@ -58,7 +58,7 @@ patsy==0.5.1
 pep8==1.7.1
 pickleshare==0.7.5
 Pygments==2.3.1
-PyJWT==1.7.1
+PyJWT==2.4.0
 pylint==2.4.4
 PyMySQL==0.9.3
 pytest-arraydiff==0.3