diff --git a/Gemfile.lock b/Gemfile.lock
index 2750eb1..32897d5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -176,7 +176,7 @@ GEM
       byebug (~> 3.4)
       pry (~> 0.10)
     public_suffix (3.1.1)
-    rack (2.2.2)
+    rack (2.2.6.2)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (5.0.7.2)