diff --git a/Gemfile.lock b/Gemfile.lock
index 9a5b90b..19adc19 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -116,7 +116,7 @@ GEM
     parallel (1.20.1)
     parslet (2.0.0)
     public_suffix (4.0.6)
-    rack (2.2.4)
+    rack (2.2.6.4)
     rb-fsevent (0.11.0)
     rb-inotify (0.10.1)
       ffi (~> 1.0)