diff --git a/Gemfile.lock b/Gemfile.lock
index 0cb0dcb..23e7533 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -76,7 +76,7 @@ GEM
     psych (4.0.3)
       stringio
     racc (1.6.0)
-    rack (2.2.3)
+    rack (2.2.6.3)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails-dom-testing (2.0.3)