diff --git a/Gemfile.lock b/Gemfile.lock
index 2816fee..ccb05e1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -119,7 +119,7 @@ GEM
     padrino-support (0.13.3.4)
       activesupport (>= 3.1)
     parallel (1.13.0)
-    rack (2.0.6)
+    rack (2.0.8)
     rack-livereload (0.3.16)
       rack
     rake (12.3.2)