diff --git a/Gemfile.lock b/Gemfile.lock
index 07cbfc5..e34028b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -109,7 +109,7 @@ GEM
       method_source (~> 1.0)
     ptools (1.3.5)
     public_suffix (4.0.6)
-    rack (2.2.3)
+    rack (2.2.3.1)
     rack-livereload (0.3.17)
       rack
     rainbow (2.2.2)