diff --git a/Desafio 8/requirements.txt b/Desafio 8/requirements.txt
index 495a9bf..696d079 100644
--- a/Desafio 8/requirements.txt	
+++ b/Desafio 8/requirements.txt	
@@ -6,5 +6,5 @@ pluggy==0.6.0
 py==1.5.3
 pytest==3.6.2
 six==1.11.0
-PyYAML==5.1.2
+PyYAML==5.4