diff --git a/Gemfile.lock b/Gemfile.lock
index 253282a..c2e081f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -263,7 +263,7 @@ GEM
       nio4r (~> 2.0)
     raabro (1.4.0)
     racc (1.5.2)
-    rack (2.2.3)
+    rack (2.2.6.3)
     rack-cors (1.1.1)
       rack (>= 2.0.0)
     rack-pjax (1.1.0)