diff --git a/Gemfile.lock b/Gemfile.lock
index 4aa9e10..dce7c0b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -108,7 +108,7 @@ GEM
     pg (1.2.3)
     public_suffix (4.0.3)
     puma (3.12.4)
-    rack (2.2.4)
+    rack (2.2.6.2)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.4.2)