diff --git a/ProjectFlex/Gemfile.lock b/ProjectFlex/Gemfile.lock
index fb9eea4..58ce17a 100644
--- a/ProjectFlex/Gemfile.lock
+++ b/ProjectFlex/Gemfile.lock
@@ -203,7 +203,7 @@ GEM
     pg (0.21.0)
     popper_js (1.14.5)
     public_suffix (4.0.1)
-    rack (2.0.7)
+    rack (2.2.3)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.3)