diff --git a/Gemfile.lock b/Gemfile.lock
index 59c5089..8b0f1c4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -24,7 +24,7 @@ GEM
       ruby2_keywords (~> 0.0.1)
     nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
-    rack (2.2.2)
+    rack (2.2.6.3)
     rack-protection (2.0.8.1)
       rack
     rack-test (1.1.0)