diff --git a/Gemfile.lock b/Gemfile.lock
index 670333c..d252851 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -95,7 +95,7 @@ GEM
       mimemagic (~> 0.3.0)
       terrapin (~> 0.6.0)
     raabro (1.1.6)
-    rack (2.0.6)
+    rack (2.2.3)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.3)