diff --git a/Gemfile.lock b/Gemfile.lock
index 96480cf..ec82101 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -77,7 +77,7 @@ GEM
       mini_portile2 (~> 2.4.0)
     pg (0.21.0)
     puma (3.12.4)
-    rack (2.2.2)
+    rack (2.2.3)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.4.2)