diff --git a/Aulas/DOJO_trainee_2019_2/Gemfile.lock b/Aulas/DOJO_trainee_2019_2/Gemfile.lock
index c3ce3ce..8ff105c 100644
--- a/Aulas/DOJO_trainee_2019_2/Gemfile.lock
+++ b/Aulas/DOJO_trainee_2019_2/Gemfile.lock
@@ -91,7 +91,7 @@ GEM
       mini_portile2 (~> 2.4.0)
     public_suffix (4.0.1)
     puma (3.12.1)
-    rack (2.0.7)
+    rack (2.2.6.2)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.1.7)