diff --git a/Gemfile.lock b/Gemfile.lock
index b8c3429..8a991de 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -100,7 +100,7 @@ GEM
     parslet (2.0.0)
     ptools (1.4.2)
     public_suffix (4.0.6)
-    rack (2.2.3)
+    rack (2.2.6.4)
     rb-fsevent (0.11.1)
     rb-inotify (0.10.1)
       ffi (~> 1.0)