diff --git a/pkgs/applications/networking/cluster/panamax/api/Gemfile.lock b/pkgs/applications/networking/cluster/panamax/api/Gemfile.lock
index 597c691700ad2..523f72adedf0d 100644
--- a/pkgs/applications/networking/cluster/panamax/api/Gemfile.lock
+++ b/pkgs/applications/networking/cluster/panamax/api/Gemfile.lock
@@ -73,7 +73,7 @@ GEM
       sawyer (~> 0.5.3)
     puma (2.8.2)
       rack (>= 1.1, < 2.0)
-    rack (1.5.2)
+    rack (1.5.5)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.1.7)