diff --git a/Gemfile.lock b/Gemfile.lock
index b3c7f11..3070191 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -88,7 +88,7 @@ GEM
       activesupport (>= 3.1)
     parallel (1.19.1)
     public_suffix (4.0.5)
-    rack (2.2.2)
+    rack (2.2.3)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)