diff --git a/web/Gemfile.lock b/web/Gemfile.lock
index a5e1b3c2..012d173d 100644
--- a/web/Gemfile.lock
+++ b/web/Gemfile.lock
@@ -106,7 +106,7 @@ GEM
       mini_portile2 (~> 2.3.0)
     public_suffix (3.0.2)
     puma (3.11.4)
-    rack (2.0.5)
+    rack (2.2.3)
     rack-test (1.0.0)
       rack (>= 1.0, < 3)
     rails (5.1.6)