diff --git a/Gemfile.lock b/Gemfile.lock
index bbbf506..b7ef3d2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -16,7 +16,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    rack (2.2.6.2)
+    rack (2.2.6.3)
     redis (4.7.0)
     rspec (3.12.0)
       rspec-core (~> 3.12.0)