diff --git a/COSMOS/Gemfile.lock b/COSMOS/Gemfile.lock
index bf1ed039..d7891330 100644
--- a/COSMOS/Gemfile.lock
+++ b/COSMOS/Gemfile.lock
@@ -40,7 +40,7 @@ GEM
       yard (~> 0.9.11)
     puma (3.12.6)
     qtbindings (4.8.6.5)
-    rack (2.2.3)
+    rack (2.2.6.2)
     rake (13.0.1)
     rdoc (6.2.1)
     ruby-termios (1.0.2)