diff --git a/Gemfile.lock b/Gemfile.lock
index 175e167..e5d20ef 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -188,7 +188,7 @@ GEM
       hashie (~> 4.1)
       multi_json (~> 1.15)
     racc (1.6.0)
-    rack (2.2.3)
+    rack (2.2.6.2)
     rack-cors (1.1.1)
       rack (>= 2.0.0)
     rack-test (1.1.0)