diff --git a/Desafio 4/requirements.txt b/Desafio 4/requirements.txt
index bba3c01..e1f3949 100644
--- a/Desafio 4/requirements.txt	
+++ b/Desafio 4/requirements.txt	
@@ -6,4 +6,4 @@ pluggy==0.6.0
 py==1.5.3
 pytest==3.6.2
 six==1.11.0
-PyJWT==1.7.1
+PyJWT==2.4.0